This PR should remove all Headstart Annotations from themes in this repo.
Why? Headstart annotations stored in WP.com themes are generated, tested, and sent for translation via WP-CLI scripts running on subversion-ed WordPress sandboxes. I recently updated Headstart annotations for our 20+ recent themes in order to correct some issues in our FSE Plugin and Page Layout feature. When discussing how to get these annotations updated in this themes repo @michaeldcain and came up with two options.
1. Copy-paste back into the affected themes in this repo.
2. Just remove all the Headstart annotations from this repo.
The second option seemed the simplest. It leaves **all** Headstart annotations on WP.com "ignore-able" for this GH repo and reduces the chance of Headstart annotations becoming out of date in this GH repo, potentially reducing future errors.
On WPCOM, Varia adds an option, which defaults to true, to hide the page title of the homepage.
* Add the `.hide-homepage-title` class to the block editor body as well.
* Enqueue a new stylesheet on the block editor that hides the homepage title and reposition the Post Content block.
* Restore the header's bottom padding on the front end's homepage when the page title is hidden.
