Remove awards list focus style overrides in framework sass

What does this MR do and why?

Remove awards list focus style overrides in framework sass

Replace styling in sass with tailwind util classes

References

Please include cross links to any resources that are relevant to this MR This will give reviewers and future readers helpful context to give an efficient review of the changes introduced.

MR acceptance checklist

Please evaluate this MR against the MR acceptance checklist. It helps you analyze changes to reduce risks in quality, performance, reliability, security, and maintainability.

Screenshots or screen recordings

Note: there should be no visual change.

Before	After

How to set up and validate locally

1. Check out this branch
2. Visit an issue or MR
3. add an emoji reaction
4. focus the search input on the emoji picker then use the Tab key to move focus onto the row of category selection buttons
5. You will see that the focus state for the category selection buttons matches the way they look on prod

Related to #503383 (closed), #499695 (closed)