Improve browse no results message

The new browse UI simply says "Undefined" when there are no contents (see attached).
Filing to get this message improved.

NX2 does not have this issue because as far as I can tell there's always content (even just an empty base folder).
This is newly introduced to NX3 (post-legacy).

Up for discussion but recommend a message like: "There are no _ in this repository (that you have permission to see)" where _ is component or asset, I think for now, component. I am unsure about the security portion but it would be more clear were we to have restriction on viewing specific components within a repo.