add sentence

resource/locales/en_US/admin/admin.json

@@ -293,6 +293,7 @@
     "official_bot_settings": "Official bot Settings",
     "custom_bot_without_proxy_settings": "Custom Bot without proxy Settings",
     "reset": "Reset",
+    "reset_all_settings": "Reset all settings",
     "delete_slackbot_settings": "Reset Slack Bot settings",
     "slackbot_settings_notice": "Reset",
     "accordion": {

resource/locales/ja_JP/admin/admin.json

@@ -290,6 +290,7 @@
     "cooperation_procedure": "連携手順",
     "custom_bot_without_proxy_settings": "Custom Bot (Without-Proxy) 設定",
     "reset": "リセット",
+    "reset_all_settings": "全ての設定をリセット",
     "delete_slackbot_settings": "Slack Bot 設定をリセットする",
     "slackbot_settings_notice": "リセットします",
     "accordion": {

resource/locales/zh_CN/admin/admin.json

@@ -300,6 +300,7 @@
     "cooperation_procedure": "协作程序",
     "custom_bot_without_proxy_settings": "Custom Bot (Without-Proxy) 设置",
     "reset":"重置",
+    "reset_all_settings": "重置所有设置",
     "delete_slackbot_settings": "重置 Slack Bot 设置",
     "slackbot_settings_notice": "重置",
     "accordion": {