This PR adds automatic markdown URL embedding on paste when you are in
text associated with the Markdown language and you have a valid URL in
your clipboard. This the default behavior in VS Code and GitHub, when
pasting a URL in Markdown. It works in both singleton buffers and multi
buffers.
One thing that is a bit unfortunate is that, previously, `do_paste` use
to simply call `Editor::insert()`, in the case of pasting content that
was copied from an external application, and now, we are duplicating
some of `insert()`'s logic in place, in order to have control over
transforming the edits before they are inserted.
Release Notes:
- Added automatic Markdown URL embedding on paste.
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Co-authored-by: Cole Miller <53574922+cole-miller@users.noreply.github.com>
Joseph T. LyonsandCole Miller
c88fdaf02d