This changeset removes `.wp-block` container from headings CSS selectors to restore consistency between editor and front-end styles. It also removes `.wp-block` from headings selectors in the `'block-editor'` array of `twentytwenty_get_localized_font_family_elements()`.
Props kajalgohel, kmadhak, poena, multidots1896, tahmidulkarim, audrasjb.
Fixes#56194.
Built from https://develop.svn.wordpress.org/trunk@54154
git-svn-id: http://core.svn.wordpress.org/trunk@53713 1a063a9b-81f0-0310-95a4-ce76da25c4cd