Clean up org pages layout (#37445)

1. Fix overview sidebar regression
2. Remove unnecessary classes and styles
3. Fix "org invite" page

templates/org/team/sidebar.tmpl

@@ -15,21 +15,21 @@
 			{{end}}
 		</div>
 	</h4>
-	<div class="ui attached table segment detail">
-		<div class="item">
+
+		<div class="ui attached segment">
 			{{if .Team.Description}}
 				{{.Team.Description}}
 			{{else}}
 				<span class="tw-text-text-light tw-italic">{{ctx.Locale.Tr "org.teams.no_desc"}}</span>
 			{{end}}
 		</div>
-		{{if eq .Team.LowerName "owners"}}
-			<div class="item">
+
+		<div class="ui attached segment">
+			{{/* TODO: old indent is kept to make diff changes minimal, can be reformatted in the future */}}
+			{{if eq .Team.LowerName "owners"}}
 				<p>{{ctx.Locale.Tr "org.teams.owners_permission_desc"}}</p>
 				<p>{{ctx.Locale.Tr "org.teams.owners_permission_suggestion"}}</p>
-			</div>
-		{{else}}
-			<div class="item">
+			{{else}}
 				<h3>{{ctx.Locale.Tr "org.team_access_desc"}}</h3>
 				<ul>
 					{{if .Team.IncludesAllRepositories}}
@@ -75,9 +75,9 @@
 						</tbody>
 					</table>
 				{{end}}
-			</div>
-		{{end}}
-	</div>
+			{{end}}
+		</div>
+
 	{{if .IsOrganizationOwner}}
 		<div class="ui bottom attached segment">
 			<a class="ui small button" href="{{.OrgLink}}/teams/{{.Team.LowerName | PathEscape}}/edit">{{svg "octicon-gear"}} {{ctx.Locale.Tr "org.teams.settings"}}</a>