Update Chrome data for Document features that were on HTMLDocument alias (#6865)
Update Chrome data for Document features that were on HTMLDocument alias (#6865)

This commit updates the Chromium data for various Document API
features that were initially implemented on `HTMLDocument`, first by
obtaining the version numbers via the mdn-bcd-collector project, then
separating them into sections with `partial_implementation`.  This is
a cherry-pick from #6836, applying the review suggestions from
https://github.com/mdn/browser-compat-data/pull/6836#discussion_r501736375.

Co-authored-by: Philip Jägenstedt <3ba3974e96044dcde818e6310ed799abe10671d4@foolip.org>
mdn/browser-compat-data,mdn/browser-compat-data,chrisdavidmills/browser-compat-data,chrisdavidmills/browser-compat-data