Filtering

[lbarcziova]

This is a tracking epic for the multiple efforts to improve the UX of our dashboard.

What should be done:

• Filtering for API endpoints packit-service#1882, as a part of this possible DB improvements
• List of PRs in dashboard not always the most useful selection packit-service#2513
• Make it possible to filter the list of jobs by a time range #257

[Venefilyn]

I would love if we can try to do this as part of a migration to FastAPI, which should be possible to do over time given that FastAPI can serve Flask (packit/packit-service#2567)

That way we can also change the current structure to enforce syntax that enables Swagger auto-generation. I know @majamassarini tried a while back to marshal all the endpoints but it created a lot of duplication

With FastAPI or doing a huge refactor of the current View-Model we can sort this out, making filtering a lot easier. I noticed there is a lot of technical debt as well with the API views as they generate a lot of queries for each request and do a lot of the heavy lifting inside the view rather than in the model - which makes things a lot less maintainable and less performant