fix instance page in app (#5316)

apps/app-frontend/src/pages/instance/Index.vue

@@ -211,7 +211,9 @@ import { get_by_profile_path } from '@/helpers/process'
 import { finish_install, get, get_full_path, kill, run } from '@/helpers/profile'
 import { showProfileInFolder } from '@/helpers/utils.js'
 import { handleSevereError } from '@/store/error.js'
-import { useBreadcrumbs, useLoading } from '@/store/state'
+import { useBreadcrumbs, useLoading, useTheming } from '@/store/state'
+
+const themeStore = useTheming()
 
 dayjs.extend(duration)
 dayjs.extend(relativeTime)