Unify workspace dropdowns; Update layouts (#458)

Unified Account and Workspace drop-downs; Layout updates, now header lives within the PageBody component; Sidebars now use floating variant

apps/web/app/home/(user)/_components/user-notifications.tsx

@@ -1,16 +0,0 @@
-import { NotificationsPopover } from '@kit/notifications/components';
-
-import featuresFlagConfig from '~/config/feature-flags.config';
-
-export function UserNotifications(props: { userId: string }) {
-  if (!featuresFlagConfig.enableNotifications) {
-    return null;
-  }
-
-  return (
-    <NotificationsPopover
-      accountIds={[props.userId]}
-      realtime={featuresFlagConfig.realtimeNotifications}
-    />
-  );
-}