The main accordion component that manages the accordion state.
:id - Required unique identifier for the accordion.:type - Type of accordion: "single" or "multiple". Defaults to "single".:value - The currently expanded items. String for "single", list for "multiple".:default-value - The default expanded items. Used if :value is not provided.:disabled - Whether the accordion is disabled. Defaults to false.:on-value-changed - Handler for accordion value change event.:class - Additional CSS classes.:on-value-changed - Fired when an item is expanded or collapsed.