Expand .gitignore for Laravel, update README with one-command setup, simplify env configs

src/app/Filament/Resources/UserResource/Pages/CreateUser.php

@@ -0,0 +1,12 @@
+<?php
+
+namespace App\Filament\Resources\UserResource\Pages;
+
+use App\Filament\Resources\UserResource;
+use Filament\Actions;
+use Filament\Resources\Pages\CreateRecord;
+
+class CreateUser extends CreateRecord
+{
+    protected static string $resource = UserResource::class;
+}