Multi-line messages

[haadcode]

The user should be able to write multi-line messages

[haadcode]

The initial version doesn't need to include this, but it'd be great to be able to specify the "format" for a multiline message: plain text or "code". If "Code" format is selected, it gets rendered with syntax highlighting when received (use highlight.js, same as for files atm).

[haadcode]

Reference to try out: https://quilljs.com/

[dignifiedquire]

There is also

• http://prosemirror.net/
• http://codemirror.net/
• https://facebook.github.io/draft-js/

which might be interesting to look at