Fix margin on the `new/edit milestone` page (#25801)

There is some distortion in desktop and mobile ui for new/edit milestone
page.
Fixing the new/edit milestone page for desktop and mobile ui

Design background
https://uxplanet.org/primary-secondary-action-buttons-c16df9b36150
https://balsamiq.com/learn/articles/button-design-best-practices/

<details>
  <summary>Screen shots</summary>

Before:

![image](https://github.com/go-gitea/gitea/assets/80308335/c8627679-da2d-465f-bc8f-978d7b836919)

![image](https://github.com/go-gitea/gitea/assets/80308335/43b54599-2856-440a-a13c-08bb3cedf35c)

After

![image](https://github.com/go-gitea/gitea/assets/80308335/85ca3d32-4842-41bc-8647-aa4222b9cc06)

![image](https://github.com/go-gitea/gitea/assets/80308335/c00e87c4-e64e-4b18-aa42-d26c3942a21b)

</details>

---------

Co-authored-by: Denys Konovalov <privat@denyskon.de>
Co-authored-by: Giteabot <teabot@gitea.io>

diff --git a/templates/repo/issue/milestone_new.tmpl b/templates/repo/issue/milestone_new.tmpl
index 1979eb07a5a1f6d1fb95bb6e95df7e1006270a99..56450108509fc99f28bb7573c91c5ea59fb68af4 100644 (file)
--- a/templates/repo/issue/milestone_new.tmpl
+++ b/templates/repo/issue/milestone_new.tmpl
@@ -21,9 +21,8 @@
                        {{end}}
                </h2>
                {{template "base/alert" .}}
-               <form class="ui form grid" action="{{.Link}}" method="post">
+               <form class="ui form" action="{{.Link}}" method="post">
                        {{.CsrfTokenHtml}}
-                       <div class="twelve wide column">
                                <div class="field {{if .Err_Title}}error{{end}}">
                                        <label>{{.locale.Tr "repo.milestones.title"}}</label>
                                        <input name="title" placeholder="{{.locale.Tr "repo.milestones.title"}}" value="{{.title}}" autofocus required maxlength="50">
@@ -39,10 +38,8 @@
                                        <label>{{.locale.Tr "repo.milestones.desc"}}</label>
                                        <textarea name="content">{{.content}}</textarea>
                                </div>
-                       </div>
-                       <div class="ui container">
                                <div class="divider"></div>
-                               <div class="ui right">
+                               <div class="gt-text-right">
                                        {{if .PageIsEditMilestone}}
                                                <a class="ui primary basic button" href="{{.RepoLink}}/milestones">
                                                        {{.locale.Tr "repo.milestones.cancel"}}
@@ -55,7 +52,6 @@
                                                        {{.locale.Tr "repo.milestones.create"}}
                                                </button>
                                        {{end}}
-                               </div>
                        </div>
                </form>
        </div>