Align the search filter rail: facet lists and the Date Published filter

Problem/Motivation

On the Horizon Aid search page the filter rail holds the Category and Content Type facets and the Date Published filter. The facet checkbox lists keep a list indent, so they sit to the right of their headings, and the Date Published form brings its own filter panel padding and background into the rail panel.

Steps to reproduce

1. Install Horizon Aid with its Varbase Search Base search page (the related Horizon Aid issue).
2. Open /search?keywords=water.

Proposed resolution

• Drop the list indent and bullets of facet checkbox lists.
• Drop the panel padding and background of the rail's Date Published form.

Two scoped rules in views-exposed-filters.scss. The header search and the listing filters are unchanged.

Screenshots

Before

After

Remaining tasks

• ✅ File an issue
• ❌ Addition/Change/Update/Fix
• ❌ Testing to ensure no regression
• ➖ Automated unit/functional testing coverage
• ➖ Developer Documentation support
• ➖ User Guide Documentation support
• ❌ UX/UI designer responsibilities
• ❌ Accessibility and Readability
• ❌ Reviewed by a human
• ❌ Code review by maintainers
• ❌ Full testing and approval
• ❌ Credit contributors
• ❌ Review with the product owner
• ❌ Update Release Notes
• ❌ Release

User interface changes

• Facet lists and the Date Published filter line up with their headings in the search rail.

API changes

• N/A

Data model changes

• N/A

Release notes snippet

• N/A

AI-Generated: Yes. Drafted with an AI assistant and reviewed before posting.