arch: laravel namespaces only in related code

Ensure laravel namespaces are only used in code that is already specific
to laravel.

Author: biinari

tests/ArchTest.php

@@ -2,4 +2,12 @@
 
 declare(strict_types=1);
 
-return;
+arch()
+    ->expect(['Illuminate', 'Laravel', 'Livewire'])
+    ->toOnlyBeUsedIn([
+        Pest\Browser\Api\Livewire::class,
+        Pest\Browser\Api\TestableLivewire::class,
+        Pest\Browser\Cleanables\Livewire::class,
+        Pest\Browser\Drivers\LaravelHttpServer::class,
+        'Workbench',
+    ]);