Add multi-factor authentication (MFA) support; update localization and error handling

frontend/src/locales/zh.json

@@ -188,7 +188,9 @@
     "add_a_tag": "添加标签",
     "tags": "标签",
     "set_to_pin": "设置为固定",
-    "category_fetch_error": "获取类别时出错"
+    "category_fetch_error": "获取类别时出错",
+    "copied_to_clipboard": "已复制到剪贴板！",
+    "copy_failed": "复制失败"
   },
   "home": {
     "desc_1": "轻松发现、规划和探索",
@@ -234,7 +236,8 @@
     "my_tags": "我的标签",
     "tag": "标签",
     "language_selection": "语言",
-    "support": "支持"
+    "support": "支持",
+    "calendar": "日历"
   },
   "auth": {
     "forgot_password": "忘记密码？",
@@ -250,7 +253,8 @@
     "registration_disabled": "目前已禁用注册。",
     "profile_picture": "个人资料图片",
     "public_profile": "公开资料",
-    "public_tooltip": "通过公开个人资料，用户可以与您共享收藏并在用户页面上查看您的个人资料。"
+    "public_tooltip": "通过公开个人资料，用户可以与您共享收藏并在用户页面上查看您的个人资料。",
+    "email_required": "电子邮件为必填项"
   },
   "worldtravel": {
     "all": "全部",
@@ -295,7 +299,41 @@
     "photo_by": "摄影：",
     "change_password_error": "无法更改密码。\n当前密码无效或新密码无效。",
     "current_password": "当前密码",
-    "password_change_lopout_warning": "更改密码后您将退出。"
+    "password_change_lopout_warning": "更改密码后您将退出。",
+    "authenticator_code": "验证码",
+    "copy": "复制",
+    "disable_mfa": "禁用 MFA",
+    "email_added": "邮箱添加成功！",
+    "email_added_error": "添加电子邮件时出错",
+    "email_removed": "电子邮件删除成功！",
+    "email_removed_error": "删除电子邮件时出错",
+    "email_set_primary": "成功将电子邮件设置为主！",
+    "email_set_primary_error": "将电子邮件设置为主要电子邮件时出错",
+    "email_verified": "邮箱验证成功！",
+    "email_verified_erorr_desc": "无法验证您的电子邮件。\n请再试一次。",
+    "email_verified_error": "验证电子邮件时出错",
+    "email_verified_success": "您的电子邮件已被验证。\n您现在可以登录了。",
+    "enable_mfa": "启用 MFA",
+    "error_change_password": "更改密码时出错。\n请检查您当前的密码，然后重试。",
+    "generic_error": "处理您的请求时发生错误。",
+    "invalid_code": "MFA 代码无效",
+    "invalid_credentials": "用户名或密码无效",
+    "make_primary": "设为主要",
+    "mfa_disabled": "多重身份验证已成功禁用！",
+    "mfa_enabled": "多重身份验证启用成功！",
+    "mfa_not_enabled": "MFA 未启用",
+    "mfa_page_title": "多重身份验证",
+    "mfa_required": "需要多重身份验证",
+    "no_emai_set": "没有设置电子邮件",
+    "not_verified": "未验证",
+    "primary": "基本的",
+    "recovery_codes": "恢复代码",
+    "recovery_codes_desc": "这些是您的恢复代码。\n确保他们的安全。\n你将无法再见到他们。",
+    "reset_session_error": "请注销并重新登录以刷新您的会话，然后重试。",
+    "verified": "已验证",
+    "verify": "核实",
+    "verify_email_error": "验证电子邮件时出错。\n几分钟后重试。",
+    "verify_email_success": "邮箱验证发送成功！"
   },
   "checklist": {
     "add_item": "添加项目",