Screenreader only checkbox doesn't work as described #43
Description
The Statistics Block contains a checkbox with help text that says "If checked, the heading will be hidden from view and avaliable to screen-readers only."
When it is text, the title of the section is still visible. See screenshot here:
The Statistics Block is the only default block using this feature. The code for the checkbox occurs in BaseSectionBlock.
We should probably re-evaluate whether BaseSectionBlock is the appropriate location for this feature and consider removing it if we are not prepared to use it in other blocks more broadly.