Dice straying off the board from their initial positions when tabbed out of the game during others' turns

[mlevatich]

Describe the bug
I usually run into this when I'm testing locally and switching between different tabs to control all of the players in a game at once. Over time, as I come back to each tab, the dice will have drifted upward on screen, continuing until they're no longer visible. This doesn't happen when I'm playing with others, so I assume it's a problem of being tabbed out while the game progresses.

Browser:

• OS: MacOS
• Browser Firefox

Additional context
I have no idea what causes this issue (I guess it's probably something to do with tweens, but I couldn't find anything on google). Potential band-aid solution is to have the onRoll() function in gameBoard.js also return dice to their original Y positions, like it does with their X positions.