[FIX] Mark wineprefixes starting with XDG_RUNTIME_DIR as invalid

[Etaash-mathamsetty]

Prevents more user error

Use the following Checklist if you have changed something on the Backend or Frontend:

• Tested the feature and it's working on a current and clean install.
• Tested the main App features and they are still working on a current and clean install. (Login, Install, Play, Uninstall, Move games, etc.)
• Created / Updated Tests (If necessary)
• Created / Updated documentation (If necessary)

[arielj]

@Etaash-mathamsetty you have to explain your PRs better, what is the issue this is fixing? why is this fix implemented like this? it's hard to review your PRs without any context of the problem or the reasons of the fix

[Etaash-mathamsetty]

context: #3075
oh there's not much context there either lol. Basically it's the same flatpak sandbox issue, people keep picking paths they don't have access through with the sandbox

[arielj]

maybe instead of adding specific directories as invalid we can validate the path the users pick and check if it's writable instead? then we can cover any path and not only the ones we hardcode checks

[Etaash-mathamsetty]

maybe instead of adding specific directories as invalid we can validate the path the users pick and check if it's writable instead? then we can cover any path and not only the ones we hardcode checks

I think those /run/user paths are writable, but I'll check if that's correct after trying it out

[flavioislima]

WE already have a method on backend to validate if the path is writable or not so just use it and that should fix the issue @Etaash-mathamsetty