fix: bug where with last and first day range

Author: RichardLindhout

src/Date/Month.tsx

@@ -143,9 +143,8 @@ function Month({
                 })
               : false
 
-          let leftCrop: boolean = selectedStartDay || dayOfMonth === 0
-          let rightCrop: boolean =
-            selectedEndDay || dayOfMonth - 1 === daysInMonth
+          let leftCrop: boolean = selectedStartDay || dayOfMonth === 1
+          let rightCrop: boolean = selectedEndDay || dayOfMonth === daysInMonth
 
           if (dayIndex === 0 && !selectedStartDay) {
             leftCrop = false
@@ -155,6 +154,13 @@ function Month({
             rightCrop = false
           }
 
+          if (
+            (dayOfMonth === 1 && selectedEndDay) ||
+            (dayOfMonth === daysInMonth && selectedStartDay)
+          ) {
+            inRange = false
+          }
+
           return {
             beforeWeekDay,
             afterWeekDay,