Install to path - Portable HOME and settings

[thelamer]

Proot apps should have another install option to point to a directory where it installs the app as a fully portable thing.

• The home directory should be relative and contained within the path selected
• The toolchain (proot, ncat, etc) should be copied and referenced in a relative manner to that path

The end goal being launchers that can be clicked on to launch the app and contain all of the settings/files to that path, this would enable the user to install to a USB stick and plug it into any machine to run their apps with their settings.

It should create two versions of the launchers one as linux desktop files and one as powershell scripts that launch WSL2 to run it.

[thelamer]

I do not believe Windows and ChromeOS will be possible as they would need to support a USB stick with a Linux filesystem like EXT4. This will likely be a Linux only feature, but is useful for people that want to isolate the $HOME of an app to something outside of their default path to avoid pollution.