Make breadcrumbs responsive

[ericfranz]

Apply the changes in this commit: OSC/ood-example-ps@165bda9c6dd2b59b468c782253bd531e973eb62fhttps://github.com/OSC/ood-example-ps/commit/165bda9c6dd2b59b468c782253bd531e973eb62f

to

ood_appkit/app/assets/stylesheets/ood_appkit/branding/_navbar.scss

Lines 30 to 43 in ea1435d

	> li {
	float: left;
	> a {
	@extend %navbar-brand;
	}
	+ li:before {
	@extend %navbar-brand;
	padding: $navbar-padding-vertical 0;
	content: '/';
	}
	}
	}

┆Issue is synchronized with this Asana task by Unito