Further 'copy to clipboard' issues

[vdice]

In testing #215 I noticed some more 'copy to clipboard' issues:

• instances where the 'copy to clipboard' icon is visible but it doesn't appear to actually copy to my clipboard
  • for example: any 'copy-able' snippet from the Quickstart doc
  • (My setup: Browser: Brave, Macbook Air M3)
• more instances where the 'copy to clipboard' icon is not visible
  • for example: the Installing on Azure Kubernetes Service doc

[bacongobbler]

Error from console logs:

ReferenceError: Cannot access 'copyCode' before initialization
    at copyButton.onclick (click-to-copy.js:32:9)
copyButton.onclick @ click-to-copy.js:32

more instances where the 'copy to clipboard' icon is not visible

• for example: the Installing on Azure Kubernetes Service doc

I'm looking into how this works from docsy's side of things

[bacongobbler]

The issue with the button not appearing appears to stem from the following error log:

Uncaught DOMException: Failed to execute 'add' on 'DOMTokenList': The token provided must not be empty.
    at http://localhost:1313/js/click-to-copy.js:24:26

[bacongobbler]

Found the issue. Addressed in 8c2d397.