- Refactor for better code readability.
- Add manifest v3 support for Chromium extension
- Keep manifest v2 support for Firefox

This should not change how the app works.
If you find any bug, please open an issue at https://gitlab.com/bdelseny/screen-capture
and I will try to fix it.

There is currently a known bug:
- It is not possible to chain captures. Only the first capture will be downloaded each time, even if the capture tool does show the new capture. You need to reopen the extension between each capture.

I hope you will still enjoy the app.