feat: add edit and refresh functionality for MCP servers in settings tab (#680)

* feat: add edit and refresh functionality for MCP servers in settings tab

* feat: fix lint error and enhance MCP server dialog with validation and error handling

* fix: add missing newline at the end of en.json file

* feat: only refreshing specific servers

* feat: add validation messages for MCP server configuration and improve server update logic

web/messages/zh.json

@@ -52,8 +52,15 @@
       "learnMore": "了解更多关于 MCP 的信息。",
       "enableDisable": "启用/禁用服务器",
       "deleteServer": "删除服务器",
+      "editServer": "编辑服务器",
+      "refreshServer": "刷新服务器",
+      "editServerDescription": "编辑 MCP 服务器配置",
+      "editServerNote": "以 JSON 格式更新服务器配置",
       "disabled": "已禁用",
-      "new": "新增"
+      "new": "新增",
+      "invalidJson": "无效的 JSON 格式",
+      "validationFailed": "验证失败",
+      "missingServerName": "缺少服务器名称"
     },
     "about": {
       "title": "关于"