feat(add scrolltop theme): add scrolltop to target the theme

[rileylnapier]

Description

[Pull Request Description Here]

Type of change

• [ ] Bug fix (non-breaking change that fixes an issue)
• [x] New feature (non-breaking change that adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)

Related issues

Fix [#1]()

[codecov[bot]]

Codecov Report

:exclamation: No coverage uploaded for pull request base (main@d02c4a9). Click here to learn what that means. Patch has no changes to coverable lines.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #495 +/- ## ======================================= Coverage ? 35.91% ======================================= Files ? 69 Lines ? 1189 Branches ? 362 ======================================= Hits ? 427 Misses ? 762 Partials ? 0 ```

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