Feat: Import & export the agents. #3851 (#3894)

### What problem does this PR solve?

Feat: Import & export the agents. #3851

### Type of change


- [x] New Feature (non-breaking change which adds functionality)

web/src/locales/en.ts

@@ -1077,6 +1077,8 @@ When you want to search the given knowledge base at first place, set a higher pa
       ccEmailTip: 'cc_email: CC email (Optional)',
       subjectTip: 'subject: Email subject (Optional)',
       contentTip: 'content: Email content (Optional)',
+      jsonUploadTypeErrorMessage: 'Please upload json file',
+      jsonUploadContentErrorMessage: 'json file error',
     },
     footer: {
       profile: 'All rights reserved @ React',

web/src/locales/zh-traditional.ts

@@ -1010,6 +1010,8 @@ export default {
       testRun: '試運行',
       template: '模板轉換',
       templateDescription: '此元件用於排版各種元件的輸出。 ',
+      jsonUploadTypeErrorMessage: '請上傳json檔',
+      jsonUploadContentErrorMessage: 'json 檔案錯誤',
     },
     footer: {
       profile: '“保留所有權利 @ react”',

web/src/locales/zh.ts

@@ -1055,6 +1055,8 @@ export default {
       ccEmailTip: 'cc_email: 抄送邮箱(可选)',
       subjectTip: 'subject: 邮件主题(可选)',
       contentTip: 'content: 邮件内容(可选)',
+      jsonUploadTypeErrorMessage: '请上传json文件',
+      jsonUploadContentErrorMessage: 'json 文件错误',
     },
     footer: {
       profile: 'All rights reserved @ React',