Update ID and URL paths to use full city name and state two letter code

[mpuckett159]

Closes #33
Basically just "future proofing."

All existing paths copied for legacy support.

Tested with current version of 1-312-hows-my-driving to confirm that the website continues to work as intended. Please be sure to validate but couldn't find any issues.

[AetherUnbound]

Looks good, I think we will need to end up changing 1-312 though

[AetherUnbound]

I'm pretty sure we'll also need to update 1-312 with this new ID here: https://github.com/OrcaCollective/1-312-hows-my-driving/blob/main/src/app.py#L106

[mpuckett159]

This should maintain backwards compatibility for the existing endpoints and... I'm pretty sure it works with 1-312 with no update but I would have to look again to explain exactly why.

[AetherUnbound]

That metadata is pulled from /departments and it's attempting to get a record with ID spd, which no longer exists. I think it may still work, a user would just have to select a dataset first.

[mpuckett159]

FYI the departments metadata return got updated here so it should propagate out to the website. Even if it doesn't I have the old endpoints down at the bottom of the router file just in case anyone is using this.

E.g.:
https://github.com/OrcaCollective/spd-lookup/pull/57/files#diff-a3227344355f9398fa4f2a24075d12d71808b56b04d182197d53b6d6ff505605L70
Changed from apd to auburn-wa in the metadata.

And:
https://github.com/OrcaCollective/spd-lookup/pull/57/files#diff-9039ed29dc485554a6579ed1b461b458d9d3a48d7da4da4f3500cc9890306aa7R83
the /seattle/ etc endpoints still exist and get routed.