adding Projects feature (#85)

app/Http/Controllers/ProjectController.php

@@ -0,0 +1,29 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use App\Models\Project;
+use App\Models\User;
+use Illuminate\Contracts\View\View;
+
+class ProjectController extends Controller
+{
+    public function index(): View
+    {
+        return view('projects.index');
+    }
+
+    public function switch($projectId)
+    {
+        /** @var User $user */
+        $user = auth()->user();
+
+        /** @var Project $project */
+        $project = $user->projects()->findOrFail($projectId);
+
+        $user->current_project_id = $project->id;
+        $user->save();
+
+        return redirect()->route('servers');
+    }
+}