modify popover styles

packages/app/src/styles/_override-bootstrap-variables.scss

@@ -119,6 +119,10 @@ $dropdown-link-disabled-color: $gray-500;
 $dropdown-header-color: $gray-500;
 $dropdown-box-shadow: 0 0.5rem 0.7rem rgba(black, 0.1);
 
+//== Popovers
+$popover-border-radius: $border-radius;
+$popover-box-shadow: 0 0.5rem 0.7rem rgba(black, 0.1);
+
 //== Pagination
 $pagination-disabled-color: $gray-500;