GitHub-style Markdown editor

[adrianthedev]

Feature

It seems GitHub open sourced some elements of it's editor.
Let's try and re-build the markdown field using these plugins and this guide.

We could also use https://github.com/github/session-resume

Additional context

• https://hybrd.co/posts/github-issue-style-file-uploader-using-stimulus-and-active-storage
• https://github.com/github/markdown-toolbar-element
• https://github.com/github/text-expander-element
• https://github.com/github/session-resume
• https://github.com/github/paste-markdown