Make blogs: Convert callout blocks to notice blocks

[adamwoodnz]

The Make blogs have old style callout blocks:

These need to display as notice blocks. We added a mu-plugin to convert callout shortcodes to notices, perhaps we can use a similar approach, or failing that, add these fallback styles to the parent theme.

This should also address the styles of the callout blocks on Learn.

[jonathanbossenger]

Adding an example lesson using old callouts for testing: https://learn.wordpress.org/lesson/how-classic-and-block-themes-are-developed/

[adamwoodnz]

Adding an example lesson using old callouts for testing: https://learn.wordpress.org/lesson/how-classic-and-block-themes-are-developed/

Sorry, but I can't see any callouts in that lesson, has it been updated?

[adamwoodnz]

Adding an example lesson using old callouts for testing: https://learn.wordpress.org/lesson/how-classic-and-block-themes-are-developed/

Sorry, but I can't see any callouts in that lesson, has it been updated?

Ignore me, I just couldn't see them because of the broken styling. Here's what they look like once converted to notice via the mu-plugins change:

I'm not quite sure why the callout blocks are completely broken now, it looks like they can't even be inserted anymore... investigating.

[adamwoodnz]

I'm not quite sure why the callout blocks are completely broken now, it looks like they can't even be inserted anymore... investigating.

Discovered that callout blocks are part of the Handbook plugin, so they broke when we deactivated it.

[adamwoodnz]

Closed by WordPress/wporg-mu-plugins#660

[adamwoodnz]

Still issues with o2, now causing recursive loops and timeouts