Breadcrumbs live demo is misleading

[andreagmann]

The live demo for the Breadcrumbs shows the current page in the breadcrumb and a trailing slash by default. The default, according to the documentation, is for the current page to not be in the breadcrumb. And when the current page is shown in the breadcrumb, there should not be a trailing slash.

The ask for the live demo and the Breadcrumb implementation (to avoid developer confusion and inconsistencies):

1. don't show the current page by default + do show the trailing slash by default
2. allow adding the current page as an option + do not show the trailing slash when this option is selected

[dakahn]

Having the default live example match the default design experience makes sense to me 👍