Run Docker-OSX directly in powershell

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Actually, we can simply run Docker-OSX on WSL2 without getting into distros (just using PowerShell),and it fixed issue #430.
Let me explain that:
When using Docker Desktop on windows,it created two speical distros called docker-desktop and docker-desktop-data
In other distros,Wslg is in /mnt/wslg
But in docker-desktop,Wslg is in /mnt/host/wslg
What is worse is that the container actually boot in docker-desktop-data,and then /mnt in docker-desktop was mounted to /run/desktop in docker-desktop-data.
Therefore,we actually need to mount /run/desktop/mnt/host/wslg/.X11-unix to /tmp/.X11-unix to get video output.

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Let me explain more:
When executing command in Powershell,the existing commands actually mount a non-existent path to /tmp/.X11-unix ,which causes errors like gtk initialization failed .By changing the path(/mnt/host/wslg/.X11-unix -> /run/desktop/mnt/host/wslg/.X11-unix ),we can mount Wslg in docker-desktop to /tmp/.X11-unix to get video output.