Spatie Translatable Plugin - Language tabs not showing in form

<?php
namespace App\Providers\Filament;

use Filament\Panel;
use Filament\PanelProvider;
use Filament\SpatieLaravelTranslatablePlugin;

class AdminPanelProvider extends PanelProvider
{
    public function panel(Panel $panel): Panel
    {
        return $panel
            ->default()
            ->id('admin')
            ->path('admin')
            // ... other settings ...
            ->plugin(
                SpatieLaravelTranslatablePlugin::make()
                    ->defaultLocales(['ro', 'en', 'ru'])
            );
    }
}

<?php
namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Spatie\Translatable\HasTranslations;

class Instructor extends Model
{
    use HasFactory, HasTranslations;

    public array $translatable = ['name'];

    // ...
}