feat: 更新用户注册界面的提示文本，将“姓名”更改为“用户名”

src/locales/zh-HK.json

@@ -632,13 +632,13 @@
   "auth": {
     "signup": {
       "title": "用戶註冊",
-      "enterName": "請輸入姓名",
+      "enterName": "請輸入用户名",
       "enterEmail": "請輸入郵箱",
       "enterPassword": "請輸入密碼",
       "agreeTermsError": "請同意服務條款後繼續",
       "signupFailed": "註冊失敗，請重試",
       "validation": {
-        "nameRequired": "請輸入姓名",
+        "nameRequired": "請輸入用户名",
         "emailRequired": "請輸入郵箱",
         "emailInvalid": "請輸入有效的郵箱地址",
         "passwordRequired": "請輸入密碼",