Fix some UI alignments (#25277) (#25290)

Backport #25277 by @wxiaoguang

Fixes: https://github.com/go-gitea/gitea/issues/25282

Fix the problems:

1. The `repo-button-row` had various patches before, this PR makes it
consistent
2. The "Add File" has wrong CSS class "icon", remove it
3. The "Add File" padding was overridden by "!important", fix it by
`.repo-button-row .button.dropdown` with comment
4. The selector `.ui.segments ~ .ui.top.attached.header` is incorrect,
it should use `+`

The `repo-button-row` is only used on 3 pages:


![image](https://github.com/go-gitea/gitea/assets/2114189/16057ff0-7d30-41ca-ac13-70d074364566)


![image](https://github.com/go-gitea/gitea/assets/2114189/cbe2acb1-07b6-48f3-9f28-407a75f8c4ed)


![image](https://github.com/go-gitea/gitea/assets/2114189/341416b3-f6a8-466f-a140-361ee80e53a7)


![image](https://github.com/go-gitea/gitea/assets/2114189/3d4b7857-ef99-4a3f-a667-9890714a096d)

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

templates/repo/commits.tmpl

@@ -3,7 +3,7 @@
 	{{template "repo/header" .}}
 	<div class="ui container">
 		{{template "repo/sub_menu" .}}
-		<div class="repo-button-row gt-df gt-ac gt-sb gt-fw gt-mb-4 gt-mt-3">
+		<div class="repo-button-row">
 			<div class="gt-df gt-ac">
 				{{template "repo/branch_dropdown" dict "root" . "ContainerClasses" "gt-mr-2"}}
 				<a href="{{.RepoLink}}/graph" class="ui basic small compact button">

templates/repo/home.tmpl

@@ -61,7 +61,7 @@
 			</div>
 		{{end}}
 		{{template "repo/sub_menu" .}}
-		<div class="repo-button-row gt-df gt-ac gt-sb gt-fw">
+		<div class="repo-button-row">
 			<div class="gt-df gt-ac gt-fw gt-gap-y-3">
 				{{template "repo/branch_dropdown" dict "root" . "ContainerClasses" "gt-mr-2"}}
 				{{if and .CanCompareOrPull .IsViewBranch (not .Repository.IsArchived)}}
@@ -84,8 +84,9 @@
 				{{end}}
 
 				{{if and .CanWriteCode .IsViewBranch (not .Repository.IsArchived)}}
-					<button class="ui basic compact dropdown jump icon button gt-mr-2"{{if not .Repository.CanEnableEditor}} disabled{{end}}>
-						<span class="text">{{.locale.Tr "repo.editor.add_file"}}</span>
+					<button class="ui dropdown basic compact jump button gt-mr-2"{{if not .Repository.CanEnableEditor}} disabled{{end}}>
+						{{.locale.Tr "repo.editor.add_file"}}
+						{{svg "octicon-triangle-down" 14 "dropdown icon"}}
 						<div class="menu">
 							<a class="item" href="{{.RepoLink}}/_new/{{.BranchName | PathEscapeSegments}}/{{.TreePath | PathEscapeSegments}}">
 								{{.locale.Tr "repo.editor.new_file"}}
@@ -99,7 +100,6 @@
 								{{.locale.Tr "repo.editor.patch"}}
 							</a>
 						</div>
-						{{svg "octicon-triangle-down" 14 "dropdown icon"}}
 					</button>
 				{{end}}
 

templates/repo/wiki/view.tmpl

@@ -3,7 +3,7 @@
 	{{template "repo/header" .}}
 	{{$title := .title}}
 	<div class="ui container">
-		<div class="repo-button-row gt-df gt-ac gt-sb gt-fw">
+		<div class="repo-button-row">
 			<div class="gt-df gt-ac">
 				<div class="ui floating filter dropdown" data-no-results="{{.locale.Tr "repo.pulls.no_results"}}">
 					<div class="ui basic small button">