fix: return to initial state when reseting hash in Accordion & Tabs #11100

fix: return to initial state when reseting hash in Accordion & Tabs #11100

When deep-linking is enabled and the user goes back in the history up to when no hash is set, display the initially-selected content/tab instead of staying with the content/tab that was selected the first.

Closes https://github.com/zurb/foundation-sites/issues/11100
Replaces https://github.com/zurb/foundation-sites/issues/11101

Co-authored-by: Jamie Chong <jamie@hippocurious.com>