fix(i18n): complete Simplified Chinese core and plugin translations (#1542)

* fix(i18n): complete Chinese onboarding and navigation labels

* fix(i18n): translate remaining Chinese core and plugin interfaces

* fix(i18n): translate host editor tab overflow controls

* fix(i18n): use consistent Chinese fleet terminology

* fix(i18n): localize hardcoded controls and plugin views

* fix(i18n): translate built-in homepage widget catalog

* test(homepage): follow translated timezone placeholder

* fix(i18n): translate plugin-provided homepage widgets

* fix(i18n): localize feature settings section titles

plugins/webauthn/locales/translated/zh_CN.json

@@ -4,7 +4,7 @@
   "loginFailed": "通行密钥登录失败",
   "description": "使用 WebAuthn/FIDO2 凭据进行无密码登录",
   "namePlaceholder": "通行密钥名称",
-  "defaultName": "Passkey",
+  "defaultName": "通行密钥",
   "uv": {
     "preferred": "首选",
     "required": "必需",
@@ -14,9 +14,9 @@
   "none": "未注册通行密钥。",
   "added": "通行密钥已添加",
   "addFailed": "添加通行密钥失败",
-  "delete": "Delete passkey",
+  "delete": "删除通行密钥",
   "deleted": "通行密钥已删除",
   "deleteFailed": "删除通行密钥失败",
   "unknownDevice": "未知",
-  "synced": "synced"
+  "synced": "已同步"
 }