double event issue

[Akhill2020]

Description: There was an issue in which if the event is set for full day and more then one day then it will duplicate the event first day Also, in my testing, I have found that the event is not displayed on months last day so I have updated the event filter code and add some condition that prevent from duplicate event on the day. After: https://www.screenpresso.com/=pPD51FQi7X9e clickup: https://app.clickup.com/t/86cwkpk16 issue: https://wordpress.org/support/topic/all-day-events-are-duplicated-on-the-calendar/ https://wordpress.org/support/topic/deprecated-warning-25/ https://github.com/Xtendify/Simple-Calendar/issues/575