[Bug]: Unicode handling bug when using web upload

[mayli]

Describe the issue

Uploading content with unicode folder/filename from the web results corrupted file name and chapter name.
The folder name is handled correctly though.

Steps to reproduce the issue

1. Unzip this
   test-你好-test.zip
2. Do folder upload in Chrome/Windows (or any browser?), upload preview is showing expected filenames.
   
3. Check library
   

Audiobookshelf version

v2.2.22

How are you running audiobookshelf?

Docker

[mayli]

I feel it's due to the client is not encoding filename field properly, the webapp is sending

-----------------------------2053958995873082311542031043
Content-Disposition: form-data; name="0"; filename="test-ä½ å¥½-test/llama-ç¾�驼-2.91.mp3"
Content-Type: audio/mpeg

And the server side saved that as-is.

The proper way to handle utf-8 filename is RFC6266, for example

Content-Disposition: form-data; name="file"; filename="foo-%c3%a4.html"; filename*=UTF-8''foo-%c3%a4.html

Found another victim of axios

[mayli]

Fixed by #1816