Change green buttons to primary color (#27099)

I think it's better if the primary actions have primary color instead of
green which fits better into the overall single-color UI design. This PR
currently replaces every green button with primary:

<img width="141" alt="Screenshot 2023-09-16 at 14 07 59"
src="https://github.com/go-gitea/gitea/assets/115237/843c1e50-4fb2-4ec6-84ba-0efb9472dcbe">
<img width="161" alt="Screenshot 2023-09-16 at 14 07 51"
src="https://github.com/go-gitea/gitea/assets/115237/9442195a-a3b2-4a42-b262-8377d6f5c0d1">

Modal actions now use uncolored/primary instead of previous green/red
colors. I also removed the box-shadow on all basic buttons:

<img width="259" alt="Screenshot 2023-09-16 at 14 16 39"
src="https://github.com/go-gitea/gitea/assets/115237/5beea529-127a-44b0-8d4c-afa7b034a490">
<img width="261" alt="Screenshot 2023-09-16 at 14 17 42"
src="https://github.com/go-gitea/gitea/assets/115237/4757f7b2-4d46-49bc-a797-38bb28437b88">

The change currently includes the "Merge PR" button, for which we might
want to make an exception to match the icon color there:

<img width="442" alt="Screenshot 2023-09-16 at 14 33 53"
src="https://github.com/go-gitea/gitea/assets/115237/993ac1a5-c94d-4895-b76c-0d872181a70b">

5 files changed, 7 insertions, 7 deletions

diff --git a/templates/org/team/invite.tmpl b/templates/org/team/invite.tmpl
index 60332a5f40..1b04c0cc2a 100644
--- a/templates/org/team/invite.tmpl
+++ b/templates/org/team/invite.tmpl
@@ -14,7 +14,7 @@
 			<div class="extra content">
 				<form class="ui form" action="" method="post">
 					{{.CsrfTokenHtml}}
-					<button class="fluid ui green button">{{.locale.Tr "org.teams.join"}}</button>
+					<button class="fluid ui primary button">{{.locale.Tr "org.teams.join"}}</button>
 				</form>
 			</div>
 		</div>
diff --git a/templates/org/team/members.tmpl b/templates/org/team/members.tmpl
index cac0c1ce94..7c2fab4b80 100644
--- a/templates/org/team/members.tmpl
+++ b/templates/org/team/members.tmpl
@@ -17,7 +17,7 @@
 									<input class="prompt" name="uname" placeholder="{{.locale.Tr "repo.settings.search_user_placeholder"}}" autocomplete="off" required>
 								</div>
 							</div>
-							<button class="ui green button">{{.locale.Tr "org.teams.add_team_member"}}</button>
+							<button class="ui primary button">{{.locale.Tr "org.teams.add_team_member"}}</button>
 						</form>
 					</div>
 				{{end}}
diff --git a/templates/org/team/new.tmpl b/templates/org/team/new.tmpl
index 3702198ae0..1d35564007 100644
--- a/templates/org/team/new.tmpl
+++ b/templates/org/team/new.tmpl
@@ -133,9 +133,9 @@
 
 						<div class="field">
 							{{if .PageIsOrgTeamsNew}}
-								<button class="ui green button">{{.locale.Tr "org.create_team"}}</button>
+								<button class="ui primary button">{{.locale.Tr "org.create_team"}}</button>
 							{{else}}
-								<button class="ui green button">{{.locale.Tr "org.teams.update_settings"}}</button>
+								<button class="ui primary button">{{.locale.Tr "org.teams.update_settings"}}</button>
 								{{if not (eq .Team.LowerName "owners")}}
 									<button class="ui red button delete-button" data-url="{{.OrgLink}}/teams/{{.Team.Name | PathEscape}}/delete">{{.locale.Tr "org.teams.delete_team"}}</button>
 								{{end}}
diff --git a/templates/org/team/repositories.tmpl b/templates/org/team/repositories.tmpl
index 44fb1ee083..032a0f496a 100644
--- a/templates/org/team/repositories.tmpl
+++ b/templates/org/team/repositories.tmpl
@@ -17,10 +17,10 @@
 									<input class="prompt" name="repo_name" placeholder="{{.locale.Tr "org.teams.search_repo_placeholder"}}" autocomplete="off" required>
 								</div>
 							</div>
-							<button class="ui green button gt-ml-3">{{.locale.Tr "add"}}</button>
+							<button class="ui primary button gt-ml-3">{{.locale.Tr "add"}}</button>
 						</form>
 						<div class="gt-dib">
-							<button class="ui green button link-action" data-modal-confirm="{{.locale.Tr "org.teams.add_all_repos_desc"}}" data-url="{{$.OrgLink}}/teams/{{$.Team.LowerName | PathEscape}}/action/repo/addall">{{.locale.Tr "add_all"}}</button>
+							<button class="ui primary button link-action" data-modal-confirm="{{.locale.Tr "org.teams.add_all_repos_desc"}}" data-url="{{$.OrgLink}}/teams/{{$.Team.LowerName | PathEscape}}/action/repo/addall">{{.locale.Tr "add_all"}}</button>
 							<button class="ui red button link-action" data-modal-confirm="{{.locale.Tr "org.teams.remove_all_repos_desc"}}" data-url="{{$.OrgLink}}/teams/{{$.Team.LowerName | PathEscape}}/action/repo/removeall">{{.locale.Tr "remove_all"}}</button>
 						</div>
 					</div>
diff --git a/templates/org/team/teams.tmpl b/templates/org/team/teams.tmpl
index a96dd7d6be..0d7cc06ff9 100644
--- a/templates/org/team/teams.tmpl
+++ b/templates/org/team/teams.tmpl
@@ -5,7 +5,7 @@
 		{{template "base/alert" .}}
 		{{if .IsOrganizationOwner}}
 			<div class="text right">
-				<a class="ui green button" href="{{.OrgLink}}/teams/new">{{svg "octicon-plus"}} {{.locale.Tr "org.create_new_team"}}</a>
+				<a class="ui primary button" href="{{.OrgLink}}/teams/new">{{svg "octicon-plus"}} {{.locale.Tr "org.create_new_team"}}</a>
 			</div>
 			<div class="divider"></div>
 		{{end}}