Typing error for reactions

[DraftProducts]

Which package is this bug report for?

discord.js

Issue description

In the #5717 PR were added some additional typings for MessageReactionResolvable.

There is actually no code that can parse it in the MessageReactionManager>.resolve() (there is no override of the <DataManager>.resolve()).
A string is not an instance of MessageReaction, and those formulations are not indexes of Collection cached reactions (id or name).

Package version

dev

Priority this issue should have

Medium (should be fixed soon)

I have tested this issue on a development release

22e2bbb

[Jiralite]

A string is not an instance of MessageReaction

This is not correct. Unicode emojis!

It looks like MessageReactionResolvable is used by the reaction manager and nowhere else. It actually looks like EmojiIdentifierResolvable should have these string variants, but is loosely typed as a string.