datepicker fix

scss/vendor/_flatpickr.scss

@@ -8,7 +8,7 @@
 }
 
 .flatpickr-calendar {
-  background: transparent;
+  background: $white;
   border: $input-border-width solid $input-border-color;
   border-radius: $input-border-radius;
   padding: .5rem;