Enhance Event admin UI and fix translations

- Remove default_locale and primary_join_token columns from event list
- Add read-only join link field to event edit form
- Add missing translations for used/remaining photos and join link
- Fix array-to-string conversion error in join link modal

resources/lang/de/admin.php

@@ -365,13 +365,15 @@ return [
             'default_locale' => 'Standardsprache',
             'is_active' => 'Aktiv',
             'settings' => 'Einstellungen',
+            'join_link' => 'Einladungslink',
         ],
         'table' => [
             'tenant' => 'Mandant',
             'join' => 'Beitreten',
             'join_tokens_total' => 'Einladungen: :count',
-            'join_tokens_missing' => 'Noch keine Einladungen erstellt',
             'package' => 'Paket',
+            'used_photos' => 'Fotos',
+            'remaining_photos' => 'Verbleibend',
         ],
         'relation_managers' => [
             'event_packages' => [

resources/lang/en/admin.php

@@ -363,16 +363,16 @@ return [
             'date' => 'Event Date',
             'type' => 'Event Type',
             'default_locale' => 'Default Locale',
-            'is_active' => 'Is Active',
             'settings' => 'Settings',
+            'join_link' => 'Invitation Link',
         ],
         'table' => [
             'tenant' => 'Tenant',
             'join' => 'Join',
             'join_tokens_total' => 'Invitations: :count',
-            'join_tokens_missing' => 'No invitations created yet',
             'package' => 'Package',
-        ],
+            'used_photos' => 'Used Photos',
+            'remaining_photos' => 'Remaining',        ],
         'relation_managers' => [
             'event_packages' => [
                 'title' => 'Event Packages',

resources/views/filament/events/join-link.blade.php

@@ -13,7 +13,7 @@
 <div {{ $stacked }}>
   <x-filament::section
     :heading="__('admin.events.join_link.event_label')"
-    :description="$event->name"
+    :description="is_array($event->name) ? ($event->name['de'] ?? collect($event->name)->first() ?? '') : $event->name"
     :icon="Heroicon::InformationCircle"
   >
     <x-slot name="afterHeader">