Closing button for Modal Leaderboard

[ShuhaibKVL]

When clicking on the Leaderboard navigation, the modal opens and takes up almost the entire screen, making it hard for users to understand that it’s a modal. It takes them a moment to figure out how to go back. Adding a clear close button or better highlighting the fact that it’s a modal would improve user experience and prevent users from getting stuck.

[fehmer]

The leaderboard will be re-designed soon and likely not longer use a modal.