typo fix

resource/locales/en_US/admin/admin.json

@@ -307,7 +307,7 @@
     "integration_sentence": {
       "integration_is_not_complete": "Integration is not complete.<br>Proceed with the following integration procedure.",
       "proceed_with_the_following_integration_procedure": "Proceed with the following integration procedure.",
-      "integration_sucessed": "integration sucessed"
+      "integration_successful": "Integration successful"
     },
     "custom_bot_with_proxy_integration": "Custom bot with proxy integration"
   },

resource/locales/ja_JP/admin/admin.json

@@ -305,7 +305,7 @@
     "integration_sentence": {
       "integration_is_not_complete": "連携は完了していません。<br>下記の連携手順を進めてください。",
       "proceed_with_the_following_integration_procedure": "下記の連携手順を進めてください。",
-      "integration_sucessed": "連携が完了しました。"
+      "integration_successful": "連携が完了しました。"
     },
     "custom_bot_with_proxy_integration": "Custom bot with proxy 連携"
   },

resource/locales/zh_CN/admin/admin.json

@@ -315,7 +315,7 @@
     "integration_sentence": {
       "integration_is_not_complete": "一体化未完成。<br>进行以下一体化程序。",
       "proceed_with_the_following_integration_procedure": "进行以下一体化程序。",
-      "integration_sucessed": "一体化成功"
+      "integration_successful": "一体化成功"
     },
     "custom_bot_with_proxy_integration": "Custom bot with proxy 一体化"
   },