Add Turkmen localization and update Filament resources; configure timezone and locale settings

app/Filament/Resources/Groups/Schemas/GroupForm.php

@@ -2,7 +2,9 @@
 
 namespace App\Filament\Resources\Groups\Schemas;
 
+use Carbon\Carbon;
 use Filament\Forms\Components\DatePicker;
+use Filament\Schemas\Components\Utilities\Set;
 use Filament\Schemas\Schema;
 
 class GroupForm
@@ -12,8 +14,13 @@ class GroupForm
         return $schema
             ->components([
                 DatePicker::make('start_date')
-                    ->required(),
+                    ->label('Başlanýan senesi')
+                    ->required()
+                    ->live()
+                    ->afterStateUpdated(fn(Set $set, ?string $state) => $set('end_date', $state ? Carbon::parse($state)->addDays(14)->format('Y-m-d') : null)),
+
                 DatePicker::make('end_date')
+                    ->label('Gutarýan senesi')
                     ->required(),
             ]);
     }