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

src/app/View/Components/AppLayout.php

@@ -0,0 +1,17 @@
+<?php
+
+namespace App\View\Components;
+
+use Illuminate\View\Component;
+use Illuminate\View\View;
+
+class AppLayout extends Component
+{
+    /**
+     * Get the view / contents that represents the component.
+     */
+    public function render(): View
+    {
+        return view('layouts.app');
+    }
+}