0.9.0 - double-timing your user edition

[cerebrate]

One fix this time: 0.9.0 improves handling of the user runtime directory by unmounting the /mnt/wslg directory from any /run/user/{UID} directories except when the {UID} in question matches the WSLg UID (i.e., is 1000), and instead letting the user-runtime-directory@{UID}.service do its job.

This allows user sessions and their systemd user instances to work properly for users other than that with UID 1000, without breaking WSLg support for the user who does have UID 1000.

(Fixes #21, works around microsoft/WSL#9025 .)

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This discussion was created from the release 0.9.0 - double-timing your user edition.