Targets the Starlight search button and dialog input placeholder to use the primary colour variable for readable contrast in both light and dark modes.
### Explanation
This makes the main content area readable.
### Issue
22
### Attestations
- [x] I have read and agree to the [Code of Conduct](https://docs.nhcarrigan.com/community/coc/)
- [x] I have read and agree to the [Community Guidelines](https://docs.nhcarrigan.com/community/guide/).
- [x] My contribution complies with the [Contributor Covenant](https://docs.nhcarrigan.com/dev/covenant/).
### Dependencies
- [x] I have pinned the dependencies to a specific patch version.
### Style
- [x] I have run the linter and resolved any errors.
- [x] My pull request uses an appropriate title, matching the conventional commit standards.
- [x] My scope of feat/fix/chore/etc. correctly matches the nature of changes in my pull request.
### Tests
- [x] My contribution adds new code, and I have added tests to cover it.
- [x] My contribution modifies existing code, and I have updated the tests to reflect these changes.
- [x] All new and existing tests pass locally with my changes.
- [x] Code coverage remains at or above the configured threshold.
### Documentation
I have made the following PR to update the documentation site by adding a translucent background to main content sections to improve text readability against the background artwork.
### Versioning
Minor - My pull request introduces a new non-breaking feature.
Co-authored-by: Rain <rainkalugdan@gmail.com>
Reviewed-on: #23
Co-authored-by: rain <rain@nhcarrigan.com>
Co-committed-by: rain <rain@nhcarrigan.com>
hikari
rain
naomi
