[ ] add camps & classes filter to search filters as checkboxes - see image
[ ] clickable area on selector should be the entire rectangle behind it
[ ] activityhero.com/activities has both camps and classes selected
[ ] when both are selected, show both camps and classes that correspond to any other selected filters, Headline: "Kids' Camps and Classes in [city name]"
[ ] activityhero.com/camps should have camps selected, classes unselected
[ ] activityhero.com/classes should have camps unselected, classes selected
any thoughts @shilpadalmia ?