Make Some pages sortable

[phpsa]

Would be nice to allow sorting on some of the layouts, i have achieved this by doing the following, but would be nice for a built in option perhaps:

1. extend Resources\PageResource\Pages\ListPages and add

public function getTabs(): array
    {

        $options = [
            'all' => Tab::make(),
        ];

        foreach (FilamentFabricator::getLayouts() as $slug => $name) {
            $options[$slug] = Tab::make($name)
                ->modifyQueryUsing(fn (Builder $query) => $query->where('layout', $slug));
        }

        return $options;
    }

this now allows sorting content by layout

2. extend PageResource as follows:

public static function table(Table $table): Table
   {
       return parent::table($table)
           ->defaultSort(
               fn ($livewire) => blank($livewire) || $livewire->activeTab === 'all'  || FilamentFabricator::getLayoutFromName($livewire->activeTab)::$sortable === false ? 'created_at' : 'sort_order',
               fn ($livewire) => blank($livewire) || $livewire->activeTab === 'all'  || FilamentFabricator::getLayoutFromName($livewire->activeTab)::$sortable === false ? 'desc' : 'asc'
           )
           ->reorderable(
               'sort_order',
               fn($livewire) => filled($livewire->activeTab) && $livewire->activeTab !== 'all' && FilamentFabricator::getLayoutFromName($livewire->activeTab)::$sortable
           );
   }

And obviously a migration.
and finaly i each layout

    class BasicPageLayout extends Layout
{
    protected static ?string $name = 'basic-page';

    public static $sortable = false;
}

[phpsa]

If there is additional demand, i could do a PR for this with more flexabilty