fix(Query): track previousData for showing while loading

[arahansen]

fixes #1635

this ports functionality that was in graphql.ts over to Query.tsx

Checklist:

• If this PR is a new feature, please reference an issue where a consensus about the design was reached (not necessary for small changes) (N/A)
• Make sure all of the significant new logic is covered by tests
• If this was a change that affects the external API used in GitHunt-React, update GitHunt-React and post a link to the PR in the discussion. (N/A)

Note:

I wasn't able to get pre-commit hooks to run, I kept getting a "could not find directory ./node_modules/pre-commit"

[arahansen]

Thanks for merging this! Any chance we could get a new cut of the beta branch? Would love to continue playing with the Query component.

[derek-duncan]

@jbaxleyiii Can we get a new beta with this fix? I'm up for helping out with anything we need to get there too

[clayne11]

This is incredibly undesirable behavior IMO. If the variables change we shouldn't be returning data from the previous variables as they don't match the query we're performing. It's possible to add a cache like this in userland code, however it's impossible to revert to the opposite behavior once this is in place.