implement personal scoreboard (show the currently logged in user's score, plus 3 records either side of their score)
refactor leaderboard code and add tests
add tests for setting the currentUser field
add more tests for leaderboard (+ 1 currently failing)
add trophy icons for leaderboard
refactor the personal scoreboard to use a more naive approach, to make the tests pass
oops, should be length - 4 to get the right case
move variable inline