Allow for more versatility in wide code blocks

[cjyabraham]

Sometimes there are code blocks that need to be wide so it'd be great if the block could allow for wide-width setting. See this post for example

[thetwopct]

As the code block we use is 3rd party, I cannot simply add full width alignment options, so instead I have added a "full width" style which will make the code block reach the site container width rather than content width.

[cjyabraham]

Nice idea, however, I think it needs some tweaking since even though the code block appears to go full-width with that style, the code itself is still wrapping at the content edge

[thetwopct]

This is now updated and I have implemented on a few long line length blocks in this post