Fix follow button floating on profiles when overview landing page is enabled (#39650)

app/javascript/mastodon/features/ui/index.jsx

@@ -633,7 +633,7 @@ class UI extends PureComponent {
       cheat: this.handleDonate,
     };
 
-    const minimalShell = !this.props.identity.signedIn && landingPage === 'overview';
+    const minimalShell = !this.props.identity.signedIn && landingPage === 'overview' && location.pathname.startsWith('/overview');
 
     return (
       <Hotkeys global handlers={handlers}>