Make ratings more interactive and volatile

[spookybear0]

Encourage players to increase their ranking by showing the changes in rating after each game.

This could allow us to have real rankings with a #1 spot and leaderboard.

[spookybear0]

Possibly multiply the ratings by some constant (only where it's displayed, not where it's stored or calculated) to have a bigger number so users don't have to look at decimals.

Example: 25.27 -> 2527 rating points

If we multiply it by 10 it generally becomes a scale of around 0-2500