Fix comment header padding (#33377)

templates/repo/diff/comments.tmpl

@@ -8,7 +8,7 @@
 		{{template "shared/user/avatarlink" dict "user" .Poster}}
 	{{end}}
 	<div class="content comment-container">
-		<div class="ui top attached header comment-header tw-flex tw-items-center tw-justify-between">
+		<div class="comment-header">
 			<div class="comment-header-left tw-flex tw-items-center">
 				{{if .OriginalAuthor}}
 					<span class="text black tw-font-semibold tw-mr-1">