Add requirements

src/main/frontend/ui/date_picker.cljs

@@ -7,6 +7,7 @@
    [frontend.util          :refer [deref-or-value now->utc]]
    [frontend.mixins :as mixins]
    [frontend.util :as util]
+   [frontend.state :as state]
    [goog.object :as gobj]))
 
 ;; Adapted from re-com date-picker