Implement codeview sidepanel

[sacha-l]

Create a plugin to have a sidepanel codeview in some how-to guides.

[jonnysmillie]

Just want to clarify this issue @sacha-l @NukeManDan. Is this an issue to create a layout that allows for a longer codeblock in the right hand column as on Stripe.com docs?

Also is it still actively needed?

[sacha-l]

Just want to clarify this issue @sacha-l @NukeManDan. Is this an issue to create a layout that allows for a longer codeblock in the right hand column as on Stripe.com docs?

Yes, the basic reference example of how Substrate developer hub efforts previously had something like this would be: https://www.shawntabrizi.com/substrate-collectables-workshop/#/1/storage-mapping - where users can toggle between the "potential solution", "diff" and "full solution", for example of how this can be useful.