Bandcamp can't handle Japanese input for tag search

[rguhr]

Describe the bug
Bandcamp bridge does not support Japanese for tag search.

To Reproduce
Steps to reproduce the behavior:

1. Go to 'Bandcamp bridge'
2. Enter Japanese input for the tag search
3. Generate the feed
4. See empty page

Expected behavior
A working RSS/Atom feed :)

Desktop (please complete the following information):

• OS: Fedora Linux
• Browser Vivaldi (Chrome)

Additional context
Examples:

https://rss-bridge.org/bridge01/?action=display&bridge=BandcampBridge&context=By+tag&tag=%E6%9D%B1%E6%96%B9&format=Html

https://bandcamp.com/discover/%E6%9D%B1%E6%96%B9/digital?s=new