Buying previously bought items.

[Murtaza-Ali-2990]

Description

As a user,
I need to purchase every item only once,
so that I can make efficient use of the karma points.

Mocks

Acceptance Criteria

Update [Required]

• Create a list of already bought items so the user doesn't keep buying them again and again. The bought items will have their buy button replaced with the "Sold" textview. The items will only be reset when the user opts to play "New Game".

Definition of Done

• All of the required items are completed.
• Approval by 1 mentor.

Estimation

30 minutes.

[HaripriyaB]

Is this issue still on? can I work on it? @mayburgos @isabelcosta @sunjunkie