Need to watch for turbo:morph events

I'm using the new turbo page refresh action with turbo morphing. When the page is morphed, it undoes the changes made by local_time in the DOM.

The fix was to add this:

```
document.addEventListener("turbo:morph", () => {
  LocalTime.run()
})
```

Seems like the gem should probably handle this by default? If so, I'm happy to submit a PR with the change.