Initial setup questions for TS/JS & general stuff

[taigi100]

Hey, just starting out and I have a few questions:

P.S. I'm on Windows, Powershell 7.4 preview, Windows Terminal.

1. Where is the proper place to ask for help? Here?
2. From key rebinding docs - I've noticed some commands without : such as extend_line is there a place where I can see all those available commands and what they do?
   -> Solved by discovering that <space>? shows you all those commands as well!
3. In cpp I am getting inline diagnostics, but in JS / TS I am not. When checking health for JS / TS, everything is green but the DAP, which is missing. Is the DAP responsible for this, or do I need to enable some other settings? (Would also be cool if I could get the same errors in JSON)
4. Regarding the previous question, is there any way to setup DAP for JS/TS ? Found an open PR but didn't completely understand (would like some quick installation like a npm install or something).