As an authenticated user who is in an ongoing game session, I want to be able to press on an "Exit" button at any given time so I can exit the game without my score being saved and return to the home screen.

[benlegiang]

• Given the user is playing a game, when the user desires to leave the game, then an "Exit" button is displayed on the top of the screen
• Given the user is playing a game, when the user clicks on the "Exit" button, then the game is abandoned and the score is not saved
• Given the user is playing a game, when the user clicks on the "Exit" button, then the user is being redirected to the home screen where the user can start a new game
• Upon failure, the game will continue and an error message is displayed saying that the user should try to exit again

Estimate: 3h