Change photo circles colors to represent party

[nickoneill]

If we can't get the photos to load (#465 or we don't have a photo yet), default to circles with party-standard colors: a red shade for Republicans, a blue shade for Democrats and a purple shade for Independents.

[raysj9]

Just checking to see if you are still looking for someone to take this on. If so, I'm happy to help!

[nickoneill]

Yep, @raysj9, please jump in if you are interested! Just make a mention here that you'll take a look at this so someone else doesn't work on it at the same time.

[raysj9]

Great. I'll take this

[nickoneill]

fixed in #471