Add submit button to filament form in custom page

{
    use InteractsWithForms;

    protected static ?string $navigationIcon = 'heroicon-o-document-text';

    protected static string $view = 'filament.pages.chatroom-page';
    protected static ?string $slug = 'room/{id}';
    protected static string $label = '';
    protected static ?string $title = '';
    protected static ?int $id = null;
    protected static $reservation = 12;
    protected $data = [];

    public static function shouldRegisterNavigation(): bool
    {
        return false;
    }

    public function mount()
    {
        $chatroom = Chatroom::find(request()->id);
        self::$reservation = $chatroom->reservation;
    }

    public  function form(Form $form): Form
    {
        return $form
            ->schema([
                RichEditor::make('content')
                ->label('')
                ->required()
            ]);
    }
}

<x-filament-panels::page>

    <div class="form">
        <form wire:submit.prevent="submitForm">
            {{ $this->form }}
    
            <x-filament::button type="submit" class="mt-6">
               Send comment
            </x-filament::button>
        </form>
    </div>
</x-filament-panels::page>