updated time editing ui

Backend/models/absence.go

@@ -45,6 +45,10 @@ func (a *Absence) Date() time.Time {
 	return a.Day.Truncate(24 * time.Hour)
 }
 
+func (a *Absence) IsMultiDay() bool {
+	return !a.DateFrom.Equal(a.DateTo)
+}
+
 func (a *Absence) TimeWorkVirtual(u User) time.Duration {
 	return a.TimeWorkReal(u)
 }