Handle `provides` in AppStream data

See https://github.com/elementary/houston/issues/803 for context

## Problem

A package might change its RDNN or otherwise use `provides` to override a package. Right now we don't do anything with that information

## Proposal

AppCenter should be aware of `provides` and be smarter about a few things:
- Transition local payment history to the new RDNN
- Maybe be smarter with not showing duplicate app listings?

## Other

Is there potential for abuse here? Should we only support this when the package is coming from a "curated" source, to avoid potentially-malicious sideloads overriding curated apps?