graphql schema and typing refinement

## Use Case

There are a few different options we could use to get more granular or automatic typing in our graphql schema.
We can continue to type it manually, with the option to use `.gql` files for more IDE support in that process.
We can leverage gatsby typegen, or all of the above, and more!

Not critical for MVP. I'm experimenting with some of this stuff in the `idea-board` and we could find things that work there and port them over potentially.

## Acceptance Criteria

_Please describe how you know this is done_

## Details

_Please provide any helpful specifications_