chore(i18n): modify some i18n fields

i18n/en_US.yaml

@@ -546,6 +546,7 @@ ui:
     page_title: Welcome to Answer
     info_sign: Don't have an account? <1>Sign up</1>
     info_login: Already have an account? <1>Log in</1>
+    agreements: By registering, you agree to the <1>privacy policy</1> and <3>terms of service</3>.
     forgot_pass: Forgot password?
     name:
       label: Name
@@ -918,9 +919,6 @@ ui:
     back_home: Back to homepage
   page_maintenance:
     description: "We are under maintenance, we’ll be back soon."
-  admin:
-    admin_header:
-      title: Admin
   nav_menus:
     dashboard: Dashboard
     contents: Contents
@@ -935,6 +933,11 @@ ui:
     branding: Branding
     legal: Legal
     write: Write
+    tos: Terms of Service
+    privacy: Privacy
+  admin:
+    admin_header:
+      title: Admin
     dashboard:
       title: Dashboard
       welcome: Welcome to Answer Admin!

i18n/zh_CN.yaml

@@ -759,9 +759,6 @@ ui:
   page_50X:
     description: 服务器遇到了一个错误，无法完成你的请求。
     back_home: 回到主页
-  admin:
-    admin_header:
-      title: 后台管理
   nav_menus:
     dashboard: 后台管理
     contents: 内容管理
@@ -773,6 +770,9 @@ ui:
     general: 一般
     interface: 界面
     smtp: SMTP
+  admin:
+    admin_header:
+      title: 后台管理
     dashboard:
       title: 后台管理
       welcome: 欢迎来到 Answer 后台管理！