move queues configuration to config folder

[amirbey]

Background (Optional)

Bull Queues configurations should exist in a config file and not in the js codebase. For example: https://github.com/18F/federalist/pull/3674/files#r736945269

Acceptance Criteria

• [ ] all queue config are accessed from the config file directory
• [ ] queue configs no longer exist in the workers directory
• [ ] Change made live via Federalist

After evaluating, edit this part:

Level of effort - <low/medium/high>

Implementation outline (if higher than "low" effort):

• [ ] create queues config file (per queue?)
• [ ] queues should be initialized using config file

[apburnes]

It's a keeper.