fn blocks_text_content(blocks: &[GutenbergBlock], texts: &mut Vec<String>)Expand description
The text a block and everything nested inside it carries, one entry per block that has any.
Blocks hold their text as HTML in a content attribute, which is stripped here: callers render
this as plain text, and the markup is several times the size of the words in it. A block with
no text of its own (a layout wrapper, an image) contributes only what its children do.