Apply fixes from StyleCI

[ci skip] [skip ci]

Author: tabacitu

src/routes/backpack/custom.php

@@ -9,8 +9,8 @@
 Route::group([
     'prefix'     => config('backpack.base.route_prefix', 'admin'),
     'middleware' => array_merge(
-        (array)config('backpack.base.web_middleware', 'web'),
-        (array)config('backpack.base.middleware_key', 'admin')
+        (array) config('backpack.base.web_middleware', 'web'),
+        (array) config('backpack.base.middleware_key', 'admin')
     ),
     'namespace'  => 'App\Http\Controllers\Admin',
 ], function () { // custom admin routes