Improve flexibility for question layouts

[ttpcodes]

The current method we're using to handle questions on next-vote is to iterate through a JSON configuration to generate the questions to display. This is fine for simple "Yes/No" option votes or simple "pick one candidate" option votes, but really locks us in if we try to do anything more complex. Most notably, we can't do ranked choice voting for any questions in which we want to have instant runoffs implemented.

Moreover, we aren't able to create custom formatting for questions that might involve adding things to the layout such as images, sections, or hyperlinks. We should look into finding some kind of method of allowing more flexibility in how we design questions on the voting form.