Remove the initial margin from dropdown/popover in favor of Popper (#32524)

Remove the initial margin from dropdown/popover in favor of Popper (#32524)

* Remove the margin from dropdown in favor of Popper

- Set the default margin to 0 for dropdowns (To remove the Popper's  warning)
- Set the required offset in dropdown's defaults

* Remove the margin from the popover component

Co-authored-by: XhmikosR <xhmikosr@gmail.com>