Robert Anderson 39e33bed83 Editor: Add block theme infrastructure ...

Adds the required infrastructure to render block-based themes. This is sourced
from the Gutenberg plugin.

Fixes #54335.
Props bernhard-reiter, youknowriad, ntsekouras, hellofromtonya.


git-svn-id: https://develop.svn.wordpress.org/trunk@52062 602fd350-edb4-49c9-b593-d223f7449a82

2021-11-08 23:09:53 +00:00

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template.html

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