It is now completely useless, so we remove it.

chirp scenes are spawned as bevy scenes, which require reflection, so we
need to enable reflection when the chirp feature is enabled.

It was unused, and may lead to confusion, so we remove it.

Two bugs:

- A hard crash: bevyengine/bevy#10444
- Quotes being added to file paths.

Also some cleanup:

- Re-enable the custom_dsl example
- Update the bevy_mod_picking, bevy-inspector-egui adn bevy_framepace
  versions
- Remove the `allow(clippy::explicit_iter_loop)` as the cause of the
  lint is now fixed
- Replace `iter` event method with `read`.
- Various fixes to examples to work with the new bevy version