fix: contact message view

Author: TheBSD

app/Filament/Resources/ContactMessageResource/Pages/ViewContactMessage.php

@@ -13,7 +13,7 @@ public function mount(int|string $record): void
     {
         parent::mount($record);
 
-        if (! $this->record->is_read) {
+        if (! $this->record->read_at) {
             $this->record->markAsRead();
         }
     }

app/Providers/AppServiceProvider.php

@@ -4,6 +4,7 @@
 
 use App\Models\Alternative;
 use App\Models\Company;
+use App\Models\ContactMessage;
 use App\Models\Investor;
 use App\Models\Person;
 use App\Models\SimilarSite;
@@ -53,6 +54,7 @@ public function boot(): void
             'user' => User::class,
             'tag' => Tag::class,
             'similar_site' => SimilarSite::class,
+            'contact_message' => ContactMessage::class,
         ]);
 
         // just for \OwenIt\Auditing\Models\Audit::class