feat: integrate Spatie Media Library (#4)

- Added Spatie Media Library
- Added media library configuration file
- Updated Entry model to support media handling
- Added featured image upload with gallery selection and preview
- Added login tests with Dusk for user authentication
- Added Dusk test for featured image selection

Co-authored-by: jon brookes <marshyon@gmail.com>
Reviewed-on: https://codeberg.org/headshed/share-lt/pulls/4

app/Filament/Resources/Media/Pages/ListMedia.php

@@ -0,0 +1,19 @@
+<?php
+
+namespace App\Filament\Resources\Media\Pages;
+
+use App\Filament\Resources\Media\MediaResource;
+use Filament\Actions\CreateAction;
+use Filament\Resources\Pages\ListRecords;
+
+class ListMedia extends ListRecords
+{
+    protected static string $resource = MediaResource::class;
+
+    protected function getHeaderActions(): array
+    {
+        return [
+            CreateAction::make(),
+        ];
+    }
+}