fix: change how scroll to month is calculated

Author: Tautvilas Mecinskas

src/calendar-list/index.js

@@ -83,8 +83,7 @@ class CalendarList extends Component {
   scrollToMonth(m) {
     const month = parseDate(m);
     const scrollTo = month || this.state.openDate;
-    let diffMonths = this.state.openDate.diffMonths(scrollTo);
-    diffMonths = diffMonths < 0 ? Math.ceil(diffMonths) : Math.floor(diffMonths);
+    let diffMonths = Math.round(this.state.openDate.clone().setDate(1).diffMonths(scrollTo.clone().setDate(1)));
     const scrollAmount = (calendarHeight * this.pastScrollRange) + (diffMonths * calendarHeight);
     //console.log(month, this.state.openDate);
     //console.log(scrollAmount, diffMonths);