Support for Docx Deserialization

[Explorer1092]

Problem

Hopefully there will be official support for deserialization of docx files

Solution

https://platejs.org/docs/serializing-docx

Alternatives A clear and concise description of any alternative solutions or features you've considered.

Context Add any other context about the problem here. (The fastest way to have an issue fixed is to create a pull request with working, tested code and we'll help merge it. Editable is solving a pretty complex problem, and we can't do it without active contributors, so thank you so much for your help!)