Use more elaborate messages for permission denied errors on startup (#22368)
Also show all paths with issues, grouping them by the issue kind.
Inspired by https://github.com/zed-industries/zed/issues/22365 ,
https://github.com/zed-industries/zed/issues/20162,
https://github.com/zed-industries/zed/issues/13426, ...
Attempts to provide example `chown` and `chmod` commands on this error,
instead of encouraging to submit another issue.
For now, uses a hardcoded command examples, but we might provide a
better workflow later, e.g. try to automatically run those commands.
I seem to be unable to select the size of the modal, but for something
that's supposed to appear only once, it seems to be ok.




Release Notes:
- N/A