Do not display the navigation banner in the logo container (#27476)

app/javascript/mastodon/features/ui/components/navigation_panel.jsx

@@ -53,24 +53,30 @@ class NavigationPanel extends Component {
     const { intl } = this.props;
     const { signedIn, disabledAccountId } = this.context.identity;
 
+    let banner = undefined;
+
+    if(transientSingleColumn)
+      banner = (<div className='switch-to-advanced'>
+        {intl.formatMessage(messages.openedInClassicInterface)}
+        {" "}
+        <a href={`/deck${location.pathname}`} className='switch-to-advanced__toggle'>
+          {intl.formatMessage(messages.advancedInterface)}
+        </a>
+      </div>);
+
     return (
       <div className='navigation-panel'>
         <div className='navigation-panel__logo'>
           <Link to='/' className='column-link column-link--logo'><WordmarkLogo /></Link>
-
-          {transientSingleColumn ? (
-            <div className='switch-to-advanced'>
-              {intl.formatMessage(messages.openedInClassicInterface)}
-              {" "}
-              <a href={`/deck${location.pathname}`} className='switch-to-advanced__toggle'>
-                {intl.formatMessage(messages.advancedInterface)}
-              </a>
-            </div>
-          ) : (
-            <hr />
-          )}
+          {!banner && <hr />}
         </div>
 
+        {banner &&
+          <div class='navigation-panel__banner'>
+            {banner}
+          </div>
+        }
+
         {signedIn && (
           <>
             <ColumnLink transparent to='/home' icon='home' text={intl.formatMessage(messages.home)} />

app/javascript/styles/mastodon/components.scss

@@ -2466,6 +2466,7 @@ $ui-header-height: 55px;
 
     .navigation-panel__sign-in-banner,
     .navigation-panel__logo,
+    .navigation-panel__banner,
     .getting-started__trends {
       display: none;
     }