Business Dashboard UI: shift- or ctrl-click breadcrumb doesn't work as expected

1. login to BCROS
2. go to any business' dashboard
3. ctrl-click a link in the breadcrumb to open it in a new tab
4. observe that the original page also navigates to the new tab
5. go back to step 3 and shift-click a link in the breadcrumb to open it in a new window
6. observe that the original page also navigates to the new tab

This may be due to the event not being recognized as "handled" and propagating to the default handler instead.

Reproduce the issue in BCROS by opening a business dashboard and using ctrl-click and shift-click on a breadcrumb link. Inspect the Business Dashboard breadcrumb interaction and its event handling. Done means the link opens in the requested new tab or window without navigating the original page.

Written by the indexing model from the issue text.