No documentation for the opt-in optimization `yew::set_event_bubbling(false)`

[Madoshakalaka]

This is about:

• Undocumented code

Problem

#1542 introduces an opt-in optimization that registers all event listeners globally and disables event bubbling. This is nowhere reflected in the documentation.

Questionaire

• I'd like to write this documentation

[Madoshakalaka]

@WorldSEnder Thank you for documenting it for me :D

[WorldSEnder]

Was convenient to do, since I worked on event related stuff ;)