Change cursor on hover for codeblock to text

[lamATnginx]

Proposed changes

Closes https://github.com/nginxinc/docs-platform/issues/413

Checklist

Before creating a PR, run through this checklist and mark each as complete.

• I have read the CONTRIBUTING document
• If applicable, I have added tests that prove my fix is effective or that my feature works
• If applicable, I have checked that any relevant tests pass after adding my changes
• I have updated any relevant documentation (README.md and CHANGELOG.md)

[lamATnginx]

Can't grab screenshot. Need to be tested locally.

[nginx-jack]

This is an odd one; Currently cursor: text; applies to the entire code-block. So anywhere in the box, you'll see a text cursor. In the old them, the text cursor shows up specifically when you're over text, not anywhere in the box, if that makes sense?

[lamATnginx]

I see. Will make appropriate changes. Looks like we do not even need to explicitly state a cursor and this is more an issue with the z-index.

[nginx-jack]

I see. Will make appropriate changes. Looks like we do not even need to explicitly state a cursor and this is more an issue with the z-index.

Ahh cool. Good find. Thanks :) .