Reorder normalizeEmitter with addEventListener and removeEventListener before on and off to standardize behavior between environments

[vveisard]

Node's EventTarget on/ off handlers are different than its add/ remove listener handlers. In my case, this changed the behavior of p-event with MessagePort between node and bun. It makes sense to prioritize add/ remove listener handlers, which are standardized between node and web/ bun/ deno.

I would also like the type definitions to be more accurate, because this caught me by surprise.