FocusedInput expected behavior

[ekwoka]

The FocusedInput event has a focused_entity but that's not how it actually works. It will refer to the entity the propagation is at and NOT the currently focused entity.

This works fine for global listeners, but not for entity specific listeners that are up th tree.

Is this the expected behavior?

I would think focused_entity would be the actual focused entity, and maybe another field like current_entity (inspired by currentTarget in the DOM apis) would track the event target during the propagation.

Any thoughts? I'll open a PR in a few days regardless.