Improve handling of animations to avoid repeating mutations to drop Replays

Animations can cause a lot mutations (e.g. css transforms running in a long/infinite loop) which can result in a very large replay segment that ultimately ends up being dropped. [Here is an example](https://replit.com/@billy56/CobblestoneSentrySessionReplayErrorRepro)

Ideally we detect repeating mutations and handle them in such a way that we do not end up sending all of the repeated mutations.