Send 'locale' in reaction events

[jocafamaka]

Would be awesome if locale node was present in reactions events, mainly in the event Message Reaction Add.

Why? (My use case)
I have a bot that heavily uses Discord's locazation features (and before that it had its own implementation to handle it) and has support for several languages...

In addition to a default server language setting (used when the user's language is not supported).

My bot watches reactions to specific messages and in some situations after a reaction, the user receives a message, this message will always be in the server's default language, as this event does not return the user's locale.

It would be very good for this localization purpose the presence of the locale in the reaction addition event, exactly to enable the localization in this type of situation.