Improve the way how images are set in clipboard

[Witoso]

Originally mentioned in #19521

Description

When copying images from CKEditor and pasting them to other sources (MS Word, GDocs, other HTML editors), we may be losing formatting information.

• alignment may not be preserved.
• resize may not be preserved.

and others.

There are a couple of things to investigate:

1. figure for block images is not well understood by other systems, we may be loosing information on this element.
2. How to input formatting information to img to be understood? Which attributes or styles are well interpreted on the web?

We did similar things to table in the past.