There was a bug that kept page navigation from working properly when filtering. Things would load multiple times, or load the wrong thing, or not navigate properly. That should all be fixed now.
* Adds a notice alerting users that filters on profiles and the saved page do not persist
* Exposes `persistFilters` prop that will be passed to FilterBar and used to determine if the notice should be displayed
* Autofocuses the first select on the page
* Fixes spacing of interactive elements in FilterBar so they don't stretch according to content anymore
* Adds new `persistFilters` prop that determines whether the FilterBar should persist any filters to the user's cookies
* Uses defaultFilterset prop to populate the default filter set instead of importing the actual "default filter set" and using it directly
