Bug Fixes - Fluid Topics - 5.1

Fixes an issue where multiple values would not be selectable for a filter in the Search page.

Fixes an issue where the other possible values of date metadata would not be properly formatted in cluster and relatives selectors.

Fixes an issue where some functions of the Administration menu were not visible to users with the KHUB_ADMIN role.

Fixes an issue where the focus on the Homepage would stay on the Search bar in mobile display until the user launched a search.