The built version of the app wound up with 1% opacity
for everything. Changing from percentages to a decimal
fixed the issue.

row-reverse and column-reverse do not overflow correctly in Firefox.
The left side's statblock list is now row-order; the list of combatants
is reversed, and the list is automatically scrolled to the right

Each wheele vent restarts the smooth-scrolling. It will need
to keep track of where it's scrolling to.

Each RandomWord instance now shares its history with anything derived
from it (e.g. by getting the capitalized version of that instance).
This ensures that repetition doesn't occur.