The `useIgnoredEffect` hook is useful in firing an effect only when a _subset_ of dependencies change, despite subscribing to many dependencies. But the previous implementation of `useIgnoredEffect` had a few problems:
- The effect did not receive the updated values of `ignoredDeps` - thus, `useIgnoredEffect` pretty much worked the same way as using `useEffect` and omitting said dependencies from the dependency array. This caused the `ignoredDeps` values to be stale.
- It compared objects by value instead of reference, which is slower and behaves differently than `useEffect` itself.
- Edge cases where the effect does not run even though the dependencies have changed. E.g. if an `ignoredDep` has value `null` and a `dep` changes its value from _something_ to `null`, the effect incorrectly does **not** run, as the current logic detects that said value is part of `ignoredDeps` => no `dep` actually changed.
This PR replaces the `useIgnoredEffect` hook with a new pattern which to combine `useEffect` with a new `useEffectEvent` hook as described here: https://react.dev/learn/separating-events-from-effects#extracting-non-reactive-logic-out-of-effects. While this is not available in React 19 stable, there is a polyfill available that's already used in several big projects (e.g. react-spectrum and bluesky).
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