Bug: Can't generate Highlight from an issues

[BekahHW]

Describe the bug

Currently, there's no functionality to create a highlight from an issue using the extension.

Steps to reproduce

1. Go to an issue.
2. Notice icon for extension isn't on the issue

Browsers

Chrome

Additional context (Is this in dev or production?)

No response

Code of Conduct

• [X] I agree to follow this project's Code of Conduct

Contributing Docs

• [X] I agree to follow this project's Contribution Docs