Clean up doc title when navigating away from Snapshot Restore. (elast…

…ic#67906)

Co-authored-by: Elastic Machine <[email protected]>

x-pack/plugins/snapshot_restore/public/application/mount_management_section.ts

@@ -44,5 +44,11 @@ export async function mountManagementSection(
     },
   };
 
-  return renderApp(element, appDependencies);
+  const unmountAppCallback = renderApp(element, appDependencies);
+
+  return () => {
+    // Change tab label back to Kibana.
+    docTitle.reset();
+    unmountAppCallback();
+  };
 }