Workspace runnables

[adsick]

Hi, it would be awesome to be able to pick a binary to run/debug from the current workspace (maybe it is there but I didn't find)

also little feedback:
btw today looked at Helix after some time and I like how I've downloaded rust-analyzer, put it into PATH and it just works with Helix! with my previous (neo)Vim setup I struggled a lot with setup, obscure-looking lua scripts and in the end you just realize that you can't switch between diagnostics to see what's wrong
Helix seems a lot more appealing to beginners although I didn't learned some things (like jump history navigation which allows to jump back after go to definition)... oh, wait, it's just Ctrl-o and Ctrl-i then I can call myself a power-user!

[Omnikar]

As for debugging, see #574.