Ability to paste only Cwicly blocks (e.g. headings and lists)

[StrangeTech]

@Araminta, I just noticed apart from the mention of lists, this is essentially a duplicate of:

Enable paste text into paragraph generating Cwicly Headings and Cwicly Paragraphs only

This is important when migrating from other sites to Cwicly, because it’s a currently a mess: (Remark: Cwicly Paragraph is eet in the Global Styles as default) copying a sequence of text including different headings and paragraphs just from marking the sequence on the frontend 2a. This is how it works with standard Gutenberg as Target environment: pasting it into a paragraph of the target site and page, the sequence is nicely resolved into respective headings and paragraph automatically 2b…