[FEATURE REQUEST] A more prominent/site-wide notice that a particular game is in one of your Family Sharing libraries

[PMTabs]

Current Behavior (if any)

Only on a game's store page is it made readily apparent that someone in a connected Family Sharing library already owns the game (it's possible it's shown elsewhere, but I've never noticed it). The wishlist doesn't have this information, for example, which is the primary reason for this requested feature.

Desired Behavior

An icon or other notice that denotes a game as being available to play in one of your Family Sharing libraries. For example, in your wishlist, highlight such games in a different colour or add an icon somewhere easily seen (perhaps next to the "Add to Cart" button).

Motivation / Use Case for Changing the Behavior

It will help prevent accidentally purchasing a game that someone else in the family already got since you added it to your wishlist or cart. This is often the case when one account buys a bundle and activates a lot of random keys, making it hard to keep track of who has what game, so our respective wishlists begin to have games listed which are now unnecessary purchases. If you add the game to your cart from the wishlist, you won't see any mention of it being in another library already. This feature request could remove that annoyance and lessen the ambiguity.

Cheers!