feat: Menambahkan DashboardController

app/Http/Controllers/Admin/DashboardController.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace App\Http\Controllers\Admin;
+
+use App\Http\Controllers\Controller;
+use Illuminate\Http\Request;
+use Inertia\Inertia;
+
+class DashboardController extends Controller
+{
+    /**
+     * Handle the incoming request.
+     */
+    public function __invoke(Request $request)
+    {
+        return Inertia::render('dashboard');
+    }
+}