Cannot Copy/Paste Inky Error messages

After we create our story, Inky helpfully detects errors in it, and the number of these is indicated in red at the top of inky. If we mouse over this indicator, the line numbers of the errors appear alongside the problem.

Unfortunately, it isn't easily possible (or readily apparent how) to copy/paste these error notifications.

Please make this feedback copy/pastable so that we can use it in other tools to find a solution.

Start by reproducing the Inky error-feedback interaction described in the issue, including the hover over the red error indicator. Locate the UI responsible for showing the error line numbers and messages, then verify that the displayed feedback can be selected and copied into another tool.

Written by the indexing model from the issue text.