Improved Event Filtering

Filter panels now support multi-select, persist state across navigation, and feature improved keyboard navigation for better accessibility.

Event filters used to let patrons pick only one value at a time and lost their state on navigation. Basker has improved the event filter components available to themes and the website builder, so filters now support selecting multiple values at once, and the selected state is preserved when a patron navigates back from an event detail page.

Changes

Multi-select mode added to all filter components
Filter state written to URL search params and restored on back-navigation
Improved keyboard navigation within filter panels for better accessibility

These changes are backwards-compatible. Existing single-select filter configurations continue to work without any changes.