Fixed bug where the displayFormat was affecting the period being selected

Author: NoahMLoomis

src/components/Datepicker.tsx

@@ -215,8 +215,8 @@ const Datepicker: React.FC<Props> = ({
                 validDate && (startDate.isSame(endDate) || startDate.isBefore(endDate));
             if (condition) {
                 setPeriod({
-                    start: formatDate(startDate, displayFormat),
-                    end: formatDate(endDate, displayFormat)
+                    start: formatDate(startDate),
+                    end: formatDate(endDate)
                 });
                 setInputText(
                     `${formatDate(startDate, displayFormat)}${