Login and data input (for additional exercises)

[smokinjoe]

Currently, it's very static how we provide input data for each of the days I've performed work on. In order to work on a new day, I have to extend the seed file, reset the DB, and I'm only allowed a single InputData type, and a choice between three different example data types.

I'd like to instead provide a user with the ability to add different variations of "Prod" data (data that's actually used to solve an advent day) and multiple variations of custom Example data (that is used to test the code).

[smokinjoe]

Implementing users

• [ ] Seed a user (me) and a demo user
• [ ] Extend the Day input data to allow relations to users
• [ ] New login form

[smokinjoe]

Enhancing input data types

• [ ] Refactor the input data types to allow it to be better extensible
• [ ] New data input form
• [ ] Fetching data by user
• [ ] Cleaning up data-fetching seam
• [ ] Refactor sub navigation rendering (to allow for n + 1 links to data fetchery)
• [ ] Refactor navigation routes, we don't want to allow for input type to be an URL param