Filament: Inbox for Internal Messaging

Here are the things that we customized on top of the default Filament.

The main Resouce is called MessagesResource, but the Model is changed to the Topic Model.

protected static ?string $model = Topic::class;
 
public static function getEloquentQuery(): Builder
{
    return Topic::query();
}

The has a default sorting by created_at in descending order.

Navigation and Model labels are changed.

protected static ?string $modelLabel = 'Message';
 
protected static ?string $navigationLabel = 'Inbox';

The messages table has three tabs for all messages, inbox, where the user sees new topics he received, and outbox, where the user sees topics he sent. The tabs are defined in the ListMessages class in the getTabs() method. Tabs have a count of how many...