Nile not opening a browser tab on auth

[Mar0xy]

It seems like for some reason Nile doesn't want to open the auth url in the browser even though defaults are set and etc so you just get stuck on paste url. I would recommend to also display the url in case of issues like this instead of only saying "a tab will be opened"

[imLinguin]

That's actually good idea, this will also allow for usage on Steam Deck now.

Done https://github.com/imLinguin/nile/commit/164b70ac55c242e79275e385a7054e4bcf59140a