auro-sidenav: update usage of Accordion to support new Accordion API

[Patrick-Daly-AA]

Is your feature request related to a problem? Please describe.

When the next release of Auro-Accordion goes out, the API is changing. SideNav needs to be updated to use the new API

Describe the solution you'd like

No response

Describe alternatives you've considered

No response

Additional context

This work is dependent on the 3.X release of Auro Accordion

[jordanjones243]

This issue was fixed by the work in this PR:

• https://github.com/AlaskaAirlines/auro-sidenav/pull/20