Apply fixes from StyleCI (#1713)

[ci skip] [skip ci]

src/Admin/AdminServiceProvider.php

@@ -43,6 +43,7 @@ class AdminServiceProvider extends AbstractServiceProvider
         $this->app->singleton('flarum.admin.routes', function () {
             $routes = new RouteCollection;
             $this->populateRoutes($routes);
+
             return $routes;
         });
 

src/Api/ApiServiceProvider.php

@@ -42,6 +42,7 @@ class ApiServiceProvider extends AbstractServiceProvider
         $this->app->singleton('flarum.api.routes', function () {
             $routes = new RouteCollection;
             $this->populateRoutes($routes);
+
             return $routes;
         });
 

src/Forum/ForumServiceProvider.php

@@ -48,6 +48,7 @@ class ForumServiceProvider extends AbstractServiceProvider
         $this->app->singleton('flarum.forum.routes', function () {
             $routes = new RouteCollection;
             $this->populateRoutes($routes);
+
             return $routes;
         });
 

src/Update/UpdateServiceProvider.php

@@ -25,6 +25,7 @@ class UpdateServiceProvider extends AbstractServiceProvider
         $this->app->singleton('flarum.update.routes', function () {
             $routes = new RouteCollection;
             $this->populateRoutes($routes);
+
             return $routes;
         });
     }