event onBeforeChange API is not implemented

[abjunior92]

Describe the bug
The documentation shows how to use onBeforeChange event api, but this api not exist in the code.
(using v0.42.3)

To Reproduce
editor.onBeforeChange is not recognized

[nperez0111]

Yep, I accidentally removed it in one of the refactors recently.

[abjunior92]

Ok thank you for the reply! 🙏

Do you restore it in a next patch maybe?

Please let me know

@nperez0111
✌🏼🙂