#1467 Rearrange old keys migration so no entries get lost

- 'error' was an old entry but now we have multiple entries under 'error' (which is now a section), so we need to ensure that we migrate the old 'error' entry before the migration sets anything under that path

src/main/resources/messages/messages_zhhk.yml

@@ -24,7 +24,7 @@ password:
 login:
     command_usage: '&8[&6用戶系統&8] &f用法：《 /login <密碼> 》'
     wrong_password: '&8[&6用戶系統&8] &c你輸入了錯誤的密碼。'
-    # TODO success: '&2Successful login!'
+    success: '&8[&6用戶系統&8] &a你成功登入了。'
     login_request: '&8[&6用戶系統&8] &c請使用這個指令來登入：《 /login <密碼> 》'
     timeout_error: '&8[&6用戶系統&8] &f登入逾時。'
 
@@ -35,7 +35,7 @@ error:
     unregistered_user: '&8[&6用戶系統&8] &c此用戶名沒有已登記資料。'
     not_logged_in: '&8[&6用戶系統&8] &c你還沒有登入 ！'
     no_permission: '&8[&6用戶系統&8] &b嗯～你想幹甚麼？'
-    # TODO unexpected_error: '&4An unexpected error occurred, please contact an administrator!'
+    unexpected_error: '&8[&6用戶系統&8] &f發生錯誤，請與管理員聯絡。'
     max_registration: '&8[&6用戶系統&8] &f你的IP地址已達到註冊數上限。 &7(info: %reg_count/%max_acc %reg_names)'
     logged_in: '&8[&6用戶系統&8] &c你已經登入過了。'
     kick_for_vip: '&c喔！因為有VIP玩家登入了伺服器。'
@@ -137,4 +137,4 @@ time:
     hour: '小時'
     hours: '小時'
     day: '日'
-    days: '日'
+    days: '日'