Add a prop to disable link pasting in MarkdownEditor #2363
Description
The paste-markdown package was recently updated to add settings to control link-pasting behavior.
We should add a corresponding prop to the MarkdownEditor component to forward this setting out so that consumers can control the behavior. In downstream usages, this prop will be powered by the new "URL paste behavior" accessibility user setting.
This should be a pretty lightweight change to the draft MarkdownEditor component.
This blocks github/memex#12266