FEATURE: split controllers/admin into more smaller directories

app/Http/Controllers/Admin/Dashboard/Dashboard.php

@@ -0,0 +1,14 @@
+<?php
+
+namespace App\Http\Controllers\Admin\Dashboard;
+
+use App\Http\Controllers\Admin\Controller;
+use Illuminate\Http\Request;
+
+class Dashboard extends Controller
+{
+    public function getIndex(Request $request)
+    {
+        return redirect()->route('content.overview');
+    }
+}