Box: fix Accordion open animation when Box/Card/etc is in an AccordionPanel (closes grommet/hpe-digitaltoolkit#158)
Box: fix Accordion open animation when Box/Card/etc is in an AccordionPanel (closes grommet/hpe-digitaltoolkit#158)

grommet/grommet,linde12/grommet,HewlettPackard/grommet,HewlettPackard/grommet,grommet/grommet,HewlettPackard/grommet,nickjvm/grommet,kylebyerly-hp/grommet,grommet/grommet,nickjvm/grommet