Show Reward Discount Code in the UI

[kenny-io]

What will this work entail

• On the profile page, we have a list of user achievements.
• Each unclaimed achievement has a Claim Reward button
• On clicking that button, show a modal(UI design for this will be attached when ready) that displays the discount code
• Users should be able to copy the code and redeem it in our swag store
• You can also have a link in the modal that links to the swag store (UI TBD)