[Feature Request] event listener to target

When used in conjunction with htmx, I will often use _hs to perform some action at the end of the htmx swap or request.

Example:

```

What I would like is to be able to use a `to` keyword in place of `from` such that the following selector matches the `target` of the event such as

```

No implementation file or test is named. Start by tracing how event listeners parse and handle `from`, then check how htmx `afterRequest` events expose their target; done means the proposed `to me` form matches that target and existing listener behavior remains intact.

Written by the indexing model from the issue text.