A collapsible accordion component.
- Optional active panels to be opened by default.
- Transition content in & out with a slide down animation. Defaults to true.
- Function that will be called when the Accordion changes the currently active panels.
- Allow multiple panels to be opened at once. Defaults to false.
- Heading of panel, displayed when panel is collapsed. Required.
- The amount of padding to put around the Accordion panel heading & it's content