Trim line trailing white spaces on file save

[fvacek]

It would be nice to have editor config option to set Helix to trim line trailing white-spaces on file save.

[DannyJJK]

I am missing this too. I think it was also discussed in this issue: #1481

For now, you could use a formatter in your languages.toml file
https://docs.helix-editor.com/languages.html