Complete front-end game mechanics (world map)

[stuar7]

The world map game page needs functionality to select between games that exist in our game database. The games need to be scored and timed. This will require appropriate back-end logic to record time spent playing the game, and metrics for how many questions the user got correct, and how many attempts they used to get the correct answer (if relevant). Mechanisms such as "lives" for incorrect answers, or 2 chances to get the correct answer need to be considered.

• [x] Implement a feature that allows users to select a game.
• [x] Implement a feature that allows users to swap between games.
• [x] Implement scoring functionality and storage of scores
• [x] Load previous scores or allow the users to see their previous performance
• [x] Implement mechanisms for failure (lives, multiple attempts)
• [x] Implement appropriate feedback for success and failure for questions and upon completion of the game.

[stuar7]

Hints introduced in #41. Complete