Cancelling semi-broken with ara2c downloader

[rlaphoenix]

Describe the bug Pressing CTRL+C to try break/cancel the download instead just cancels the track that was downloading only, instead of all tracks. It also doesn't ever mark the track as CANCELLING or CANCELLED or anything like that. It just leaves the last download speed value set. This seems to have been a bug introduced with changes in v3.0.0 regarding the rework to the downloaders and DASH/HLS download systems.

Expected behavior Pressing CTRL+C should stop segments/singular file downloads as soon as possible, mark the track as CANCELLING in yellow, then once it has stopped mark as CANCELLED in yellow. Then skip all tracks afterwards marking them as CANCELLED in yellow.

Screenshots

Additional context In the above screenshot I let the Video track finish, but cancelled the Audio track near the end and subtitles a bit after they started. Where the progress bar is visually is about where I pressed CTRL+C. The time at which it tries to stop the current track is working and correct, just it doesn't update the progress bar or cancel future tracks correctly.