feat: implement typed events

[jrandolf]

This PR implements typings for emitted events in all event emitters.

[OrKoN]

Would it be considered a breaking change? I assume if someone used string literals for event names before it might not compile after this change.

[OrKoN]

Could you add a description about what has specifically changed with a basic before and after example? (I assume feat: is marked correctly and indicates a user facing feature and not a refactoring).

[jrandolf]

Would it be considered a breaking change? I assume if someone used string literals for event names before it might not compile after this change.

There are no breaking changes, see tests for example.

Could you add a description about what has specifically changed with a basic before and after example? (I assume feat: is marked correctly and indicates a user facing feature and not a refactoring).

Done.

[OrKoN]

Would it be considered a breaking change? I assume if someone used string literals for event names before it might not compile after this change.

There are no breaking changes, see tests for example.

Could you add a description about what has specifically changed with a basic before and after example? (I assume feat: is marked correctly and indicates a user facing feature and not a refactoring).

Done.

so what is the user facing change then? should it be prefixed as refactor:?

[jrandolf]

so what is the user facing change then? should it be prefixed as refactor:?

Users now get the correct typing when they try to add a listener which required manual typing previously. We could label it as a refactor if you feel this isn't sufficient to label as a feat.

[OrKoN]

so what is the user facing change then? should it be prefixed as refactor:?

Users now get the correct typing when they try to add a listener which required manual typing previously. We could label it as a refactor if you feel this isn't sufficient to label as a feat.

I am not sure, maybe feat is good. Btw, GitHub UI really struggles to render the diffs in readable manner: I guess it's lazy-loaded so you cannot actually jump to a specific file without scrolling for a while first.

[Lightning00Blade]

LGTM + please answer the two question like comments and look at nits, and wait for all test to pass.