[Patch][pgAdmin4][pgAgent]: RM_2656 - Unable to select start and end time for scheduler from calendar

[Surinder Kumar]

Hi

*Issue:*

When a user tries to select start and end time using the calendar, the
calendar gets hidden and inaccessible to the user.

*Solution:*
​
Set `Backform.DatetimepickerControl` option `widget positioning > vertical`
to `bottom` which ensures Datepicker widget expands to bottom whenever it
is opened.

Please find attached patch and review.

Thanks,
Surinder

RM_2656.patch
Description: Binary data