Refactor navigation icon declarations in various resources for consistency; enhance Group model with new relationships and fillable properties; update Hotel and Pilgrim models with fillable attributes; improve table configurations across resources.

app/Filament/Resources/Groups/GroupResource.php

@@ -6,6 +6,7 @@ use App\Filament\Resources\Groups\Pages\CreateGroup;
 use App\Filament\Resources\Groups\Pages\EditGroup;
 use App\Filament\Resources\Groups\Pages\ListGroups;
 use App\Filament\Resources\Groups\RelationManagers\PilgrimsRelationManager;
+use App\Filament\Resources\Groups\RelationManagers\ProgramRelationManager;
 use App\Filament\Resources\Groups\Schemas\GroupForm;
 use App\Filament\Resources\Groups\Tables\GroupsTable;
 use App\Models\Group;
@@ -26,7 +27,7 @@ class GroupResource extends Resource
 
     protected static ?int $navigationSort = 1;
 
-    protected static string | BackedEnum | null $navigationIcon = 'icon-flight-takeoff';
+    protected static string|BackedEnum|null $navigationIcon = 'icon-flight-takeoff';
 
     public static function form(Schema $schema): Schema
     {
@@ -42,6 +43,7 @@ class GroupResource extends Resource
     {
         return [
             PilgrimsRelationManager::class,
+            ProgramRelationManager::class,
         ];
     }