update localization for "update route" button

Author: cklei-carly

resources/lang/en/buttons.php

@@ -230,8 +230,8 @@
     ],
 
     'update_content_route' => [
-        'label' => 'Update route',
-        'heading' => 'Update route',
+        'label' => 'URL & Routing',
+        'heading' => 'URL & Routing',
         'messages' => [
             'success' => [
                 'title' => 'Route updated',

resources/lang/zh_TW/buttons.php

@@ -230,8 +230,8 @@
     ],
 
     'update_content_route' => [
-        'label' => '更新路由',
-        'heading' => '更新路由',
+        'label' => 'URL 與路由',
+        'heading' => 'URL 與路由',
         'messages' => [
             'success' => [
                 'title' => '路由已更新',