Refa: files /file API to RESTFul style (#13741)

### What problem does this PR solve?

Files /file API to RESTFul style.

### Type of change

- [x] Documentation Update
- [x] Refactoring

---------

Co-authored-by: writinwaters <cai.keith@gmail.com>
Co-authored-by: Liu An <asiro@qq.com>

web/src/services/file-manager-service.ts

@@ -6,7 +6,6 @@ const {
   listFile,
   removeFile,
   uploadFile,
-  renameFile,
   getAllParentFolder,
   createFolder,
   connectFileToKnowledge,
@@ -23,16 +22,12 @@ const methods = {
   },
   removeFile: {
     url: removeFile,
-    method: 'post',
+    method: 'delete',
   },
   uploadFile: {
     url: uploadFile,
     method: 'post',
   },
-  renameFile: {
-    url: renameFile,
-    method: 'post',
-  },
   getAllParentFolder: {
     url: getAllParentFolder,
     method: 'get',