Automatically delete remaining empty folders after uploading the folder.

**Is your feature request related to a problem? Please describe.**
When I uploaded a folder, I chose to delete the local original files after uploading. In the end, the files were deleted, but the remaining empty directories needed to be cleaned up manually.

**Describe the solution you'd like**
Manual clearing. At the same time, the empty directory makes manual file search more difficult.

**Additional context**
Add any other context or screenshots about the feature request here.