Feature request: visual indicator for upstream dependencies status

[ghost]

When a story is close to being started (finishing details or ready to groom), it can sometimes happen that upstream dependencies are unexpectedly neither started nor in progress yet.

This can lead to surprised delays for completing work or the need to re-estimate after requirements are affected after upstream work is completed.

In such cases, a visual indicator at the top of the page next to the upstream dependencies in-page link would be useful. For example, to make the background color of the link count indicator a different color to indicate at least 1 upstream dependency has neither started nor in is progress yet.