Several fixes for mobile UI (#25634)

Resolves #25622 

<details>
<summary>Screenshots</summary>

![Bildschirmfoto vom 2023-07-02
20-47-34](https://github.com/go-gitea/gitea/assets/47871822/a8a0bff6-9ae3-48f3-b008-00c196a3f8fd)
![Bildschirmfoto vom 2023-07-02
20-47-45](https://github.com/go-gitea/gitea/assets/47871822/172a0021-af74-4690-aa67-0e66688ce733)
![Bildschirmfoto vom 2023-07-02
20-48-37](https://github.com/go-gitea/gitea/assets/47871822/14572ebd-0106-4c8a-ba27-b6b631375ee6)
![Bildschirmfoto vom 2023-07-02
20-49-08](https://github.com/go-gitea/gitea/assets/47871822/7c0ba3aa-1712-482c-aae9-13394dbdaf8a)
![Bildschirmfoto vom 2023-07-02
20-50-28](https://github.com/go-gitea/gitea/assets/47871822/8bd68e26-099a-4abd-8817-16d52af13167)
![Bildschirmfoto vom 2023-07-02
20-51-46](https://github.com/go-gitea/gitea/assets/47871822/3beab8c6-3747-4829-be50-bafaed11000c)
![Bildschirmfoto vom 2023-07-02
20-54-12](https://github.com/go-gitea/gitea/assets/47871822/51f82ef3-a32c-4c27-9056-e8711ed469cc)


</details>

---------

Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
Co-authored-by: silverwind <me@silverwind.io>

11 files changed, 71 insertions, 39 deletions

diff --git a/templates/repo/branch/list.tmpl b/templates/repo/branch/list.tmpl
index 298d854381..d7ea299fd1 100644
--- a/templates/repo/branch/list.tmpl
+++ b/templates/repo/branch/list.tmpl
@@ -29,7 +29,7 @@
 								</div>
 								<p class="info gt-df gt-ac gt-my-2">{{svg "octicon-git-commit" 16 "gt-mr-2"}}<a href="{{.RepoLink}}/commit/{{PathEscape .DefaultBranchBranch.DBBranch.CommitID}}">{{ShortSha .DefaultBranchBranch.DBBranch.CommitID}}</a> · <span class="commit-message">{{RenderCommitMessage $.Context .DefaultBranchBranch.DBBranch.CommitMessage .RepoLink .Repository.ComposeMetas}}</span> · {{.locale.Tr "org.repo_updated"}} {{TimeSince .DefaultBranchBranch.DBBranch.CommitTime.AsTime .locale}}{{if .DefaultBranchBranch.DBBranch.Pusher}} &nbsp;{{template "shared/user/avatarlink" dict "Context" $.Context "user" .DefaultBranchBranch.DBBranch.Pusher}}{{template "shared/user/namelink" .DefaultBranchBranch.DBBranch.Pusher}}{{end}}</p>
 							</td>
-							<td class="right aligned overflow-visible">
+							<td class="right aligned middle aligned overflow-visible">
 								{{if and $.IsWriter (not $.Repository.IsArchived) (not .IsDeleted)}}
 									<button class="btn interact-bg show-create-branch-modal gt-p-3"
 										data-modal="#create-branch-modal"
diff --git a/templates/repo/commits_list.tmpl b/templates/repo/commits_list.tmpl
index 0073ee1562..6768bcb513 100644
--- a/templates/repo/commits_list.tmpl
+++ b/templates/repo/commits_list.tmpl
@@ -1,5 +1,5 @@
 <div class="ui attached table segment commit-table">
-		<table class="ui very basic striped table unstackable fixed" id="commits-table">
+		<table class="ui very basic striped table unstackable" id="commits-table">
 			<thead>
 				<tr>
 					<th class="three wide">{{.locale.Tr "repo.commits.author"}}</th>
diff --git a/templates/repo/commits_table.tmpl b/templates/repo/commits_table.tmpl
index eeb50a219c..b64695eb0b 100644
--- a/templates/repo/commits_table.tmpl
+++ b/templates/repo/commits_table.tmpl
@@ -8,23 +8,23 @@
 			{{.locale.Tr "repo.commits.no_commits" $.BaseBranch $.HeadBranch}} {{if .RefName}}({{.RefName}}){{end}}
 		{{end}}
 	</div>
-	<div class="commits-table-right gt-df gt-ac">
+	<div class="commits-table-right">
 		{{if .PageIsCommits}}
 			<form class="ignore-dirty" action="{{.RepoLink}}/commits/{{.BranchNameSubURL}}/search">
 				<div class="ui tiny search input">
 					<input name="q" placeholder="{{.locale.Tr "repo.commits.search"}}" value="{{.Keyword}}" autofocus>
 				</div>
-				&nbsp;
-				<div class="ui checkbox">
-					<input type="checkbox" name="all" id="all" value="true" {{.All}}>
-					<label for="all">{{.locale.Tr "repo.commits.search_all"}} &nbsp;&nbsp;</label>
+
+				<div class="ui tiny checkbox">
+					<input type="checkbox" name="all" value="true" {{.All}}>
+					<label>{{.locale.Tr "repo.commits.search_all"}}</label>
 				</div>
 				<button class="ui primary tiny button gt-mr-0" data-panel="#add-deploy-key-panel" data-tooltip-content={{.locale.Tr "repo.commits.search.tooltip"}}>{{.locale.Tr "repo.commits.find"}}</button>
 			</form>
 		{{else if .IsDiffCompare}}
-			<a href="{{$.CommitRepoLink}}/commit/{{.BeforeCommitID | PathEscape}}" class="ui green sha label">{{if not .BaseIsCommit}}{{if .BaseIsBranch}}{{svg "octicon-git-branch"}}{{else if .BaseIsTag}}{{svg "octicon-tag"}}{{end}}{{.BaseBranch}}{{else}}{{ShortSha .BaseBranch}}{{end}}</a>
+			<a href="{{$.CommitRepoLink}}/commit/{{.BeforeCommitID | PathEscape}}" class="ui green sha label gt-mx-0">{{if not .BaseIsCommit}}{{if .BaseIsBranch}}{{svg "octicon-git-branch"}}{{else if .BaseIsTag}}{{svg "octicon-tag"}}{{end}}{{.BaseBranch}}{{else}}{{ShortSha .BaseBranch}}{{end}}</a>
 			...
-			<a href="{{$.CommitRepoLink}}/commit/{{.AfterCommitID | PathEscape}}" class="ui green sha label">{{if not .HeadIsCommit}}{{if .HeadIsBranch}}{{svg "octicon-git-branch"}}{{else if .HeadIsTag}}{{svg "octicon-tag"}}{{end}}{{.HeadBranch}}{{else}}{{ShortSha .HeadBranch}}{{end}}</a>
+			<a href="{{$.CommitRepoLink}}/commit/{{.AfterCommitID | PathEscape}}" class="ui green sha label gt-mx-0">{{if not .HeadIsCommit}}{{if .HeadIsBranch}}{{svg "octicon-git-branch"}}{{else if .HeadIsTag}}{{svg "octicon-tag"}}{{end}}{{.HeadBranch}}{{else}}{{ShortSha .HeadBranch}}{{end}}</a>
 		{{end}}
 	</div>
 </h4>
diff --git a/templates/repo/issue/labels/labels_selector_field.tmpl b/templates/repo/issue/labels/labels_selector_field.tmpl
index 6e9f843d43..c509cf37c6 100644
--- a/templates/repo/issue/labels/labels_selector_field.tmpl
+++ b/templates/repo/issue/labels/labels_selector_field.tmpl
@@ -1,5 +1,5 @@
 <div class="ui {{if or (not .HasIssuesOrPullsWritePermission) .Repository.IsArchived}}disabled{{end}} floating jump select-label dropdown">
-	<span class="text gt-df gt-ac muted">
+	<span class="text muted flex-text-block">
 		<strong>{{.locale.Tr "repo.issues.new.labels"}}</strong>
 		{{if and .HasIssuesOrPullsWritePermission (not .Repository.IsArchived)}}
 			{{svg "octicon-gear" 16 "gt-ml-2"}}
diff --git a/templates/repo/issue/new_form.tmpl b/templates/repo/issue/new_form.tmpl
index c565be336f..c5da5b0882 100644
--- a/templates/repo/issue/new_form.tmpl
+++ b/templates/repo/issue/new_form.tmpl
@@ -59,10 +59,10 @@
 
 		<input id="milestone_id" name="milestone_id" type="hidden" value="{{.milestone_id}}">
 		<div class="ui {{if not .HasIssuesOrPullsWritePermission}}disabled{{end}} floating jump select-milestone dropdown">
-			<span class="text">
+			<span class="text flex-text-block">
 				<strong>{{.locale.Tr "repo.issues.new.milestone"}}</strong>
 				{{if .HasIssuesOrPullsWritePermission}}
-					{{svg "octicon-gear"}}
+					{{svg "octicon-gear" 16 "gt-ml-2"}}
 				{{end}}
 			</span>
 			<div class="menu">
@@ -86,10 +86,10 @@
 
 		<input id="project_id" name="project_id" type="hidden" value="{{.project_id}}">
 		<div class="ui {{if not .HasIssuesOrPullsWritePermission}}disabled{{end}} floating jump select-project dropdown">
-			<span class="text">
+			<span class="text flex-text-block">
 				<strong>{{.locale.Tr "repo.issues.new.projects"}}</strong>
 				{{if .HasIssuesOrPullsWritePermission}}
-					{{svg "octicon-gear"}}
+					{{svg "octicon-gear" 16 "gt-ml-2"}}
 				{{end}}
 			</span>
 			<div class="menu">
@@ -144,10 +144,10 @@
 		<div class="divider"></div>
 			<input id="assignee_ids" name="assignee_ids" type="hidden" value="{{.assignee_ids}}">
 			<div class="ui {{if not .HasIssuesOrPullsWritePermission}}disabled{{end}} floating jump select-assignees dropdown">
-				<span class="text">
+				<span class="text flex-text-block">
 					<strong>{{.locale.Tr "repo.issues.new.assignees"}}</strong>
 					{{if .HasIssuesOrPullsWritePermission}}
-						{{svg "octicon-gear"}}
+						{{svg "octicon-gear" 16 "gt-ml-2"}}
 					{{end}}
 				</span>
 				<div class="filter menu" data-id="#assignee_ids">
diff --git a/templates/repo/issue/view_content/sidebar.tmpl b/templates/repo/issue/view_content/sidebar.tmpl
index c4cfa4731e..c3a405d855 100644
--- a/templates/repo/issue/view_content/sidebar.tmpl
+++ b/templates/repo/issue/view_content/sidebar.tmpl
@@ -127,7 +127,7 @@
 	<div class="divider"></div>
 
 	<div class="ui {{if or (not .HasIssuesOrPullsWritePermission) .Repository.IsArchived}}disabled{{end}} floating jump select-milestone dropdown">
-		<a class="text gt-df gt-ac muted">
+		<a class="text muted flex-text-block">
 			<strong>{{.locale.Tr "repo.issues.new.milestone"}}</strong>
 			{{if and .HasIssuesOrPullsWritePermission (not .Repository.IsArchived)}}
 				{{svg "octicon-gear" 16 "gt-ml-2"}}
@@ -153,7 +153,7 @@
 		<div class="divider"></div>
 
 		<div class="ui {{if or (not .HasIssuesOrPullsWritePermission) .Repository.IsArchived}}disabled{{end}} floating jump select-project dropdown">
-			<a class="text gt-df gt-ac muted">
+			<a class="text muted flex-text-block">
 				<strong>{{.locale.Tr "repo.issues.new.projects"}}</strong>
 				{{if and .HasIssuesOrPullsWritePermission (not .Repository.IsArchived)}}
 					{{svg "octicon-gear" 16 "gt-ml-2"}}
@@ -207,7 +207,7 @@
 
 	<input id="assignee_id" name="assignee_id" type="hidden" value="{{.assignee_id}}">
 	<div class="ui {{if or (not .HasIssuesOrPullsWritePermission) .Repository.IsArchived}}disabled{{end}} floating jump select-assignees-modify dropdown">
-		<a class="text gt-df gt-ac muted">
+		<a class="text muted flex-text-block">
 			<strong>{{.locale.Tr "repo.issues.new.assignees"}}</strong>
 			{{if and .HasIssuesOrPullsWritePermission (not .Repository.IsArchived)}}
 				{{svg "octicon-gear" 16 "gt-ml-2"}}
diff --git a/templates/shared/combomarkdowneditor.tmpl b/templates/shared/combomarkdowneditor.tmpl
index 26a51b369c..4c1742d21f 100644
--- a/templates/shared/combomarkdowneditor.tmpl
+++ b/templates/shared/combomarkdowneditor.tmpl
@@ -19,7 +19,7 @@ Template Attributes:
 	</div>
 	{{end}}
 	<div class="ui tab active" data-tab-panel="markdown-writer">
-		<markdown-toolbar class="gt-gap-3">
+		<markdown-toolbar>
 			<div class="markdown-toolbar-group">
 				<md-header class="markdown-toolbar-button" data-tooltip-content="{{.locale.Tr "editor.buttons.heading.tooltip"}}">{{svg "octicon-heading"}}</md-header>
 				<md-bold class="markdown-toolbar-button" data-tooltip-content="{{.locale.Tr "editor.buttons.bold.tooltip"}}">{{svg "octicon-bold"}}</md-bold>
diff --git a/web_src/css/admin.css b/web_src/css/admin.css
index 07c0190f52..f4848bef4a 100644
--- a/web_src/css/admin.css
+++ b/web_src/css/admin.css
@@ -42,3 +42,7 @@
 .admin .ui.table.segment {
   overflow-x: auto; /* if the screen width is small, many wide tables (eg: user list) need scroll bars */
 }
+
+.admin .table th {
+  white-space: nowrap;
+}
diff --git a/web_src/css/editor/combomarkdowneditor.css b/web_src/css/editor/combomarkdowneditor.css
index cfdf074f8e..63f4ebf89b 100644
--- a/web_src/css/editor/combomarkdowneditor.css
+++ b/web_src/css/editor/combomarkdowneditor.css
@@ -7,6 +7,8 @@
   display: flex;
   align-items: center;
   padding-bottom: 10px;
+  gap: .5rem;
+  flex-wrap: wrap;
 }
 
 .combo-markdown-editor .markdown-toolbar-group {
diff --git a/web_src/css/repo.css b/web_src/css/repo.css
index c2be423f7e..ebb4d37ad1 100644
--- a/web_src/css/repo.css
+++ b/web_src/css/repo.css
@@ -655,9 +655,26 @@
   .repository.view.issue .issue-title {
     flex-direction: column;
   }
+  .repository.view.issue .issue-title-buttons,
+  .repository.view.issue .edit-buttons {
+    width: 100%;
+    justify-content: space-between;
+  }
   .repository.view.issue .edit-buttons {
     margin-top: .5rem;
   }
+  .comment.form .issue-content-left .avatar {
+    display: none;
+  }
+  .comment.form .issue-content-left .content {
+    margin-left: 0 !important;
+  }
+  .comment.form .issue-content-left .content::before,
+  .comment.form .issue-content-left .content::after,
+  .comment.form .content .form::before,
+  .comment.form .content .form::after {
+    display: none;
+  }
 }
 
 .repository.view.issue .issue-title {
@@ -1197,7 +1214,14 @@
   text-align: left;
 }
 
-.repository.compare.pull .choose.branch .svg {
+.repository .choose.branch {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  flex-wrap: wrap;
+}
+
+.repository .choose.branch .svg {
   margin-right: 10px;
 }
 
@@ -2036,12 +2060,15 @@
 .repository .ui.segment.sub-menu .list {
   width: 100%;
   display: flex;
-  align-items: center;
+  align-items: stretch;
 }
 
 .repository .ui.segment.sub-menu .list .item {
   width: 100%;
   color: var(--color-text);
+  display: flex;
+  align-items: center;
+  justify-content: center;
 }
 
 .repository .ui.segment.sub-menu .list .item:first-of-type {
@@ -3124,6 +3151,14 @@ tbody.commit-list {
   text-wrap: balance;
 }
 
+.commits-table .commits-table-right form {
+  display: flex;
+  align-items: center;
+  gap: 0.75em;
+  justify-content: center;
+  flex-wrap: wrap;
+}
+
 @media (max-width: 767.98px) {
   .repository.file.list #repo-files-table .entry,
   .repository.file.list #repo-files-table .commit-list {
@@ -3193,21 +3228,14 @@ tbody.commit-list {
     align-items: initial !important;
     margin-bottom: 6px;
   }
-  .commits-table .commits-table-right form {
-    display: flex;
-    flex-wrap: wrap;
-  }
   .commits-table .commits-table-right form > div:nth-child(1) {
-    order: 1;
+    order: 1; /* the "commit search" input */
   }
   .commits-table .commits-table-right form > div:nth-child(2) {
-    order: 3;
-    margin-left: 0.5rem;
-    margin-top: 0.5rem;
+    order: 3; /* the "search all" checkbox */
   }
   .commits-table .commits-table-right form > button:nth-child(3) {
-    order: 2;
-    margin-left: 0.25rem;
+    order: 2; /* the "search" button */
   }
   .commit-table {
     overflow-x: auto;
@@ -3219,9 +3247,9 @@ tbody.commit-list {
   .commit-table .commit-list span.message-wrapper {
     max-width: none;
   }
+  .commit-table .commit-list tr td:first-child,
   .commit-table .commit-list tr td:last-child {
-    display: block;
-    width: max-content;
+    white-space: nowrap;
   }
   .commit-table .commit-list td.author {
     display: block;
diff --git a/web_src/js/components/RepoActionView.vue b/web_src/js/components/RepoActionView.vue
index f244720fe0..66374f81fd 100644
--- a/web_src/js/components/RepoActionView.vue
+++ b/web_src/js/components/RepoActionView.vue
@@ -498,6 +498,8 @@ export function initRepositoryActionView() {
 
 <style scoped>
 .action-view-body {
+  padding-top: 12px;
+  padding-bottom: 12px;
   display: flex;
   gap: 12px;
 }
@@ -531,11 +533,6 @@ export function initRepositoryActionView() {
   margin: 0 0 0 28px;
 }
 
-.action-view-left, .action-view-right {
-  padding-top: 12px;
-  padding-bottom: 12px;
-}
-
 /* ================ */
 /* action view left */
 
@@ -749,6 +746,7 @@ export function initRepositoryActionView() {
   background-color: var(--color-console-bg);
   max-height: 100%;
   border-radius: 0 0 var(--border-radius) var(--border-radius);
+  z-index: 0;
 }
 
 .job-step-container .job-step-summary {