Refactor clone-panel styles (#29861)

1. The borders were doubled on the "empty" page, fix it.
2. Remove unnecessary CSS classes like "clone", "compact", etc
3. Use CSS class "clone-panel" instead of ID "clone-panel"
4. Use `tw-flex-1` instead of `gt-f1`
5. Remove unnecessary ID "more-btn"

templates/repo/clone_buttons.tmpl

@@ -1,15 +1,15 @@
 <!-- there is always at least one button (by context/repo.go) -->
 {{if $.CloneButtonShowHTTPS}}
-	<button class="ui small compact clone button" id="repo-clone-https" data-link="{{$.CloneButtonOriginLink.HTTPS}}">
+	<button class="ui small button" id="repo-clone-https" data-link="{{$.CloneButtonOriginLink.HTTPS}}">
 		HTTPS
 	</button>
 {{end}}
 {{if $.CloneButtonShowSSH}}
-	<button class="ui small compact clone button" id="repo-clone-ssh" data-link="{{$.CloneButtonOriginLink.SSH}}">
+	<button class="ui small button" id="repo-clone-ssh" data-link="{{$.CloneButtonOriginLink.SSH}}">
 		SSH
 	</button>
 {{end}}
 <input id="repo-clone-url" size="20" class="js-clone-url" value="{{$.CloneButtonOriginLink.HTTPS}}" readonly>
-<button class="ui basic small compact icon button" id="clipboard-btn" data-tooltip-content="{{ctx.Locale.Tr "copy_url"}}" data-clipboard-target="#repo-clone-url" aria-label="{{ctx.Locale.Tr "copy_url"}}">
+<button class="ui small icon button" id="clipboard-btn" data-tooltip-content="{{ctx.Locale.Tr "copy_url"}}" data-clipboard-target="#repo-clone-url" aria-label="{{ctx.Locale.Tr "copy_url"}}">
 	{{svg "octicon-copy" 14}}
 </button>

templates/repo/empty.tmpl

@@ -37,7 +37,7 @@
 									</a>
 									{{end}}
 								{{end}}
-								<div class="ui action small input gt-df gt-f1">
+								<div class="clone-panel ui action small input tw-flex-1">
 									{{template "repo/clone_buttons" .}}
 								</div>
 							</div>

templates/repo/home.tmpl

@@ -124,9 +124,9 @@
 			<div class="gt-df gt-ac">
 				<!-- Only show clone panel in repository home page -->
 				{{if eq $n 0}}
-					<div class="ui action tiny input" id="clone-panel">
+					<div class="clone-panel ui action tiny input">
 						{{template "repo/clone_buttons" .}}
-						<button id="more-btn" class="ui basic small compact jump dropdown icon button" data-tooltip-content="{{ctx.Locale.Tr "repo.more_operations"}}">
+						<button class="ui small jump dropdown icon button" data-tooltip-content="{{ctx.Locale.Tr "repo.more_operations"}}">
 							{{svg "octicon-kebab-horizontal"}}
 							<div class="menu">
 								{{if not $.DisableDownloadSourceArchives}}

templates/repo/wiki/revision.tmpl

@@ -15,7 +15,7 @@
 				</div>
 			</div>
 			<div class="ui eight wide column text right">
-				<div class="ui action small input" id="clone-panel">
+				<div class="clone-panel ui action small input">
 					{{template "repo/clone_buttons" .}}
 					{{template "repo/clone_script" .}}
 				</div>

templates/repo/wiki/view.tmpl

@@ -28,7 +28,7 @@
 					</div>
 				</div>
 			</div>
-			<div class="ui action small input gt-df gt-ac" id="clone-panel">
+			<div class="clone-panel ui action small input">
 				{{template "repo/clone_buttons" .}}
 				{{template "repo/clone_script" .}}
 			</div>

web_src/css/repo.css

@@ -143,41 +143,31 @@
   margin-bottom: 12px;
 }
 
-.repository #clone-panel #repo-clone-url {
+.repository .clone-panel #repo-clone-url {
   width: 320px;
   border-radius: 0;
 }
 
-@media (min-width: 768px) and (max-width: 991.98px) {
-  .repository #clone-panel #repo-clone-url {
+@media (max-width: 991.98px) {
+  .repository .clone-panel #repo-clone-url {
     width: 200px;
   }
 }
 
-@media (max-width: 767.98px) {
-  .repository #clone-panel #repo-clone-url {
-    width: 200px;
-  }
-}
-
-.repository #clone-panel #repo-clone-https,
-.repository #clone-panel #repo-clone-ssh {
-  border-right: none;
+.repository .ui.action.input.clone-panel > button + button,
+.repository .ui.action.input.clone-panel > button + input {
+  margin-left: -1px; /* make the borders overlap to avoid double borders */
 }
 
-.repository #clone-panel #more-btn {
-  border-left: none;
-}
-
-.repository #clone-panel button:first-of-type {
+.repository .clone-panel > button:first-of-type {
   border-radius: var(--border-radius) 0 0 var(--border-radius) !important;
 }
 
-.repository #clone-panel button:last-of-type {
+.repository .clone-panel > button:last-of-type {
   border-radius: 0 var(--border-radius) var(--border-radius) 0 !important;
 }
 
-.repository #clone-panel .dropdown .menu {
+.repository .clone-panel .dropdown .menu {
   right: 0 !important;
   left: auto !important;
 }
@@ -1759,10 +1749,6 @@
   font-weight: var(--font-weight-normal);
 }
 
-.repository.quickstart .guide .clone.button:first-child {
-  border-radius: var(--border-radius) 0 0 var(--border-radius);
-}
-
 .repository.quickstart .guide #repo-clone-url {
   border-radius: 0;
   padding: 5px 10px;

web_src/css/repo/wiki.css

@@ -58,7 +58,7 @@
 }
 
 @media (max-width: 767.98px) {
-  .repository.wiki #clone-panel #repo-clone-url {
+  .repository.wiki .clone-panel #repo-clone-url {
     width: 160px;
   }
   .repository.wiki .wiki-content-main.with-sidebar,