feat: Chinese localization for auth + footer resources

server/locales/zh/auth.json

-{ }
+{
\ No newline at end of file
+  "providers": {
+    "local": "本地的",
+    "windowslive": "微软账户",
+    "azure": "Azure活动目录",
+    "google": "Google ID",
+    "facebook": "Facebook",
+    "github": "Github",
+    "slack": "Slack",
+    "ldap": "LDAP/活动目录"
+  }
+}
\ No newline at end of file

server/locales/zh/common.json

-{ }
+{
\ No newline at end of file
+  "wiki": "维基",
+  "headers": {
+    "overview": "总览"
+  },
+  "footer": {
+    "poweredby": "Powered by",
+    "home": "首页",
+    "top": "返回顶部"
+  }
+}
\ No newline at end of file