Porting Accordion Options dialogue box

This suppose to be in review?

Just fyi for when this gets put up for review all checks need to pass

Phpstsn next major is known issue so can ignore that one

Ok thanks, I'm still working on the collapsed checkbox feature.

Sounds like a good feature.

smustgrave → changed the visibility of the branch add-accordion-options to hidden.

smustgrave → changed the visibility of the branch add-accordion-options-squash to hidden.

smustgrave → changed the visibility of the branch 3463627-porting-accordion-options to hidden.

smustgrave → closed merge request !78

Rebased but the there a ton of out of scope changes in the plugin js that should be reverted as it also breaks accordions.

So I think we can go about this a different route. Instead of through the text formatter lets add 2 new commands to accordion. This way the editors have the power