[Request]: Directory picker for the prefix importer

[MiraiSubject]

Tell us the problem or your need

The problem is mostly described here: https://github.com/bottlesdevs/Bottles/issues/781

But the gist is that apparently Bottles doesn't grab XDG_DATA_HOME/Games properly on certain distros and sandbox needs to be broken to be able to import prefixes like Lutris'. I also don't think it makes much sense to hardcode the directory as Lutris (and probably other wine managers) let you customise the directory in the application itself.

Describe the solution you'd like

To fix this, I would like to have a directory picker added to the import screen so you can point Bottles to the directory where your Lutris/other prefixes are located.

Other solutions?

No response

Additional context and references

https://github.com/bottlesdevs/Bottles/issues/781#issuecomment-1105418070