Apply suggestions from code review

Co-authored-by: Krzysztof Rewak <krzysztof.rewak@blumilk.pl>

app/Http/Controllers/LogoutController.php

@@ -12,7 +12,7 @@ class LogoutController extends Controller
 {
     public function __invoke(Request $request): RedirectResponse
     {
-        Auth::logout();
+        $request->user()?->logout();
 
         $request->session()->invalidate();
         $request->session()->regenerateToken();

resources/js/Shared/Layout/GuestLayout.vue

@@ -9,4 +9,4 @@
 export default {
     name: 'GuestLayout',
 };
-</script>
+</script>

resources/lang/pl.json

@@ -1,3 +1,3 @@
 {
   "User does not exist.": "Użytkownik nie istnieje."
-}
+}