[Bug][DateTimePicker] onBlur events are thrown when interacting with the popup

[filipKovachev]

Describe the bug
When clicking an item in the Calendar the onBlur is thrown. The same behavior can be reproduced for the DatePicker as well.

To Reproduce
Steps to reproduce the behavior:

1. Open this example: https://codesandbox.io/p/sandbox/wonderful-joliot-thjvdh?file=%2Fsrc%2Fmain.vue%3A53%2C5
2. Toggle open the Calendar using the calendar icon on the right of the input box.
3. When clicking any item in the calendar, see that the onBlur event is being triggered.

Expected behavior
The onBlur event should be triggered when the focus has been completely removed from the popup

Reported in Ticket ID: 1660555