Syntax highlight for sql input box

[XiangpengHao]

Our syntax highlighting is basically none:

It would be great to incorporate monaco editor (or other modern editors) that provides fancy SQL language support.

But it seems very challenging to do this in Rust...

[etolbakov]

@XiangpengHao
I played a bit with monaco 😅 This is the best I could get.
The CodeEditor is mocked to show the predefined table name.
If you are fine in general I can proceed further

[XiangpengHao]

This looks super cool! Thank you for the demo @etolbakov
Not sure if it's easy to do, but I would be great if we can also make multi-line sql look better, potentially with auto formatting.