feat(ui): Shadow UI redesign, domain management, and DNS autoconfigure (#11119)

Co-authored-by: ShadowArcanist <162910371+ShadowArcanist@users.noreply.github.com>

tests/Feature/Auth/TwoFactorChallengeAccessTest.php

@@ -1,5 +1,6 @@
 <?php
 
+use App\Models\InstanceSettings;
 use App\Models\Team;
 use App\Models\User;
 use Illuminate\Foundation\Testing\RefreshDatabase;
@@ -7,6 +8,7 @@ use Illuminate\Foundation\Testing\RefreshDatabase;
 uses(RefreshDatabase::class);
 
 beforeEach(function () {
+    InstanceSettings::forceCreate(['id' => 0]);
     $this->user = User::factory()->create();
     $this->team = Team::factory()->personal()->create();
     $this->team->members()->attach($this->user->id, ['role' => 'owner']);
@@ -59,7 +61,8 @@ it('renders 419 error page with login link instead of previous url', function ()
     $view = view('errors.419')->render();
 
     expect($view)->toContain('/login');
-    expect($view)->toContain('Back to Login');
+    expect($view)->toContain('Back to login');
     expect($view)->toContain('This page is definitely old, not like you!');
+    expect($view)->toContain('error-shell');
     expect($view)->not->toContain('url()->previous()');
 });