Temporarily remove italics from breadcrumbs

Removed italics from breadcrumbs until the following Chrome bug is fixed:

https://bugs.chromium.org/p/chromium/issues/detail?id=1018581&q=BlinkMacSystemFont&colspec=ID%20Pri%20M%20Stars%20ReleaseBlock%20Component%20Status%20Owner%20Summary%20OS%20Modified

The issue seems to be related to the use of the italics variant of BlinkMacSystemFont font. It seems to have already been fixed in Chrome Canary version 81.0.4036.0, so we should hopefully see this fixed in the stable version of Chrome soon.

We use italics for our breadcrumbs, so as a temporary workaround this MR removes italics from the breadcrumbs until the Crhome issue is resolved.

Preview

before	after

Closes #631 (closed)