update the large JSON object periodically

[jlr7245]

i think that having the large json object as a filtered list is valuable and will continue to be valuable. however as it currently exists it has a couple of major problems

• needs to be updated by hand
• the fiasco that has been adding all the bios individually

here are some steps to take to fix that.

• [ ] separate out house & senate lists
• [ ] periodically query propublica api for all members or for new members. probably all members to be able to swap legislators out
• [ ] filter against bioguide ids, check for consistency
• [ ] if inconsistencies found, overwrite large json object accordingly
• [ ] if no inconsistencies found, do nothing

things to consider:

• the large json object is i think the fastest way to handle the search feature. but, for some of the backend calls, would it be worthwhile to have a legislators table instead? what information to put in it?
• how to get the bios from the bioguide id site programmatically?