feat: chat in explore support agent (#647)

Co-authored-by: StyleZhang <jasonapring2015@outlook.com>

web/i18n/lang/common.zh.ts

@@ -91,6 +91,7 @@ const translation = {
     language: '语言',
     provider: '模型供应商',
     dataSource: '数据来源',
+    plugin: '插件',
   },
   account: {
     avatar: '头像',
@@ -224,6 +225,13 @@ const translation = {
       },
     },
   },
+  plugin: {
+    serpapi: {
+      apiKey: 'API Key',
+      apiKeyPlaceholder: '输入你的 API 密钥',
+      keyFrom: '从 SerpAPI 帐户页面获取您的 SerpAPI 密钥',
+    },
+  },
   about: {
     changeLog: '更新日志',
     updateNow: '现在更新',