[ Feature ] Import wishlist

Just import the wishlist into the user library.

- (maybe) create a new system State “wishlist” (system states cannot be deleted) and automatically add the state to those games.
- Take the wishlist into account when importing the library, maybe make a tab or something

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Suggested by Paulv on Discord

https://discord.com/channels/297380113673355264/1459210830657618083