refs https://github.com/TryGhost/Ghost/issues/9623
- switch to custom `mobiledoc-kit` build
- fixes top-level elements not being run through parser plugins (https://github.com/bustle/mobiledoc-kit/pull/627)
- fixes <kbd>Alt</kbd> getting stuck and causing <kbd>Backspace</kbd> to delete whole words (https://github.com/bustle/mobiledoc-kit/pull/626)
- fixes error that can occur when a paste results in blank insert (https://github.com/bustle/mobiledoc-kit/pull/620)
- add new `figureToImageCard` parser
- replaces hacky workaround to detect an image+figcaption inside the `imgToCard` parser plugin
- remove wrapping of html in a `<div>...</div>` when pasting
- no longer necessary now that top-level elements are parsed
- fixes rich-text pastes where multiple paragraphs would be collapsed into a single paragraph
refs https://github.com/TryGhost/Ghost/issues/9623
- workaround to grab a `<figcaption>` for use in an image card in some cases
- will only work when an `<img>` tag is immediately followed by a `<figcaption>` tag in the parsed html
refs https://github.com/TryGhost/Ghost/issues/9623
- use our custom paste event to intercept and modify pasted HTML before passing to mobiledoc
- wrap the html in a `<div>` so that all elements get parsed by mobiledoc-kit
- when pasting results in the last pasted section being a card, insert a blank paragraph
- fixes immediate breaking of the undo stack
refs https://github.com/TryGhost/Ghost/issues/9623
- adds `parserPlugins` option with array of parser plugins that read node values and convert them when pasting
- converts `<br>` to a soft-break atom for line breaks
- removes leading newlines from text nodes to avoid leading spaces in the render output (common when pasting MD with line breaks)
Kevin Ansfield