Allow setting config directory on windows to a location within WSL 2

[JakeDern]

Problem

I do all of my development from within WSL2 and currently using neovim. All of my dotfiles are in github, cloned to WSL2, and symlinked so that it's easy to commit any tweaks back up and replicate to my other machines. I'm super excited to give Zed a try instead now that the Windows beta is out and supports remote development with WSL2, but one thing I ran into was that Zed always seems to look in the Windows AppData location for the setting.json and keymap.json files. I'd like to keep those files with the rest in my WSL2 environment if possible.

Possible solutions

This might boil down to being able to override the config folder just like XDG_CONFIG_HOME on linux which seems to be supported. If there were an equivalent for Windows then maybe something as simple as setting WINDOWS_CONFIG_HOME=\\wsl.localhost\Ubuntu-22.04\home\foo\.config could make this work.

Another idea would be to use a CLI argument when launching zed from WSL. Maybe something like zed --use-remote-settings ..

[JustBarnt]

I would also love being able to override the configuration directory. On my windows machined at work and home- I use the XDG_CONFIG variables. That way my dotfiles for neovim and other cross-platform applications are point to the same location.