Use redis as datastore

[ramank775]

Since the CountAPI service is currently unavailable, this project is effectively unusable, and all of our historical data has been lost. To make a fresh start, I've switched to using Redis instead. If this change is in line with the project's objectives, I'd be happy to submit a pull request. Otherwise, I'm open to starting a separate project that utilizes Redis as its data storage solution.

If you're interested in reviewing the modifications, you can find them here 2dbfed3