Various code cleanup.

app/Http/Controllers/Import/CallbackController.php

@@ -36,6 +36,8 @@ class CallbackController extends Controller
 {
 
     /**
+     * Callback specifically for YNAB logins.
+     *
      * @param Request                      $request
      *
      * @param ImportJobRepositoryInterface $repository

app/Http/Controllers/Import/IndexController.php

@@ -37,7 +37,7 @@ use Log;
  */
 class IndexController extends Controller
 {
-    /** @var array */
+    /** @var array All available providers */
     public $providers;
     /** @var ImportJobRepositoryInterface The import job repository */
     public $repository;