Just commit it all

app/Http/Controllers/BookmarksController.php

@@ -0,0 +1,15 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use App\Models\BookmarkSite;
+use App\Models\BookmarkCategory;
+use Illuminate\View\View;
+
+class BookmarksController extends Controller
+{
+    public function show() : View {
+        $categories = BookmarkCategory::with('sites')->get();
+        return view('bookmarks', compact('categories'));
+    }
+}