Mixin that enables popover functionality
container
StringContainer for the popover, set to 'body' to prevent parent styling from modifying the popover
Default: 'body'
placement
StringPlacement of the popover (top, bottom, left, right, or auto) auto is a special placement which will appear top or bottom based on location on the screen
Default: 'top'
popoverTrigger
StringTrigger of the popover (hover, click, focus, or pinnable) pinnable is special behavior which supports both click and hover
Default: 'hover'
toggle
StringThis is the toggle type for the popover. In most cases it should remain 'popover'
Default: 'popover'