feat: upload file in FileManager #345 (#529)

### What problem does this PR solve?

feat: upload file in FileManager #345 

### Type of change

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

web/src/utils/api.ts

@@ -74,4 +74,5 @@ export default {
   renameFile: `${api_host}/file/rename`,
   getAllParentFolder: `${api_host}/file/all_parent_folder`,
   createFolder: `${api_host}/file/create`,
+  connectFileToKnowledge: `${api_host}/file2document/convert`,
 };

web/src/utils/fileUtil.ts

@@ -85,3 +85,12 @@ export const downloadFile = ({
   downloadElement.click();
   document.body.removeChild(downloadElement);
 };
+
+export const getFilePathByWebkitRelativePath = (file: File) => {
+  const path = file.webkitRelativePath;
+  return path;
+  // if (path !== '') {
+  //   return path.slice(0, path.lastIndexOf('/'));
+  // }
+  // return path;
+};