Improve i18n

web/src/locales/zh/data.json

@@ -168,6 +168,7 @@
     "Applications that require authentication": "需要认证和鉴权的应用",
     "Avatar": "头像",
     "Avatar - Tooltip": "公开展示的用户头像",
+    "Back": "返回",
     "Back Home": "返回到首页",
     "Cancel": "取消",
     "Captcha": "人机验证码",
@@ -280,6 +281,7 @@
     "Sync": "同步",
     "Syncers": "同步器",
     "System Info": "系统信息",
+    "There was a problem signing you in..": "登录时遇到问题..",
     "This is a read-only demo site!": "这是一个只读演示站点！",
     "Timestamp": "时间戳",
     "Tokens": "令牌",
@@ -701,6 +703,8 @@
     "Table primary key - Tooltip": "表主键，如id等"
   },
   "system": {
+    "API Latency": "API延迟",
+    "API Throughput": "API吞吐量",
     "About Casdoor": "关于Casdoor",
     "An Identity and Access Management (IAM) / Single-Sign-On (SSO) platform with web UI supporting OAuth 2.0, OIDC, SAML and CAS": "一个支持OAuth 2.0、OIDC、SAML和CAS的Web UI优先的身份和访问管理（IAM）/单点登录（SSO）平台",
     "CPU Usage": "CPU使用率",