Add freetext category filter to issue query when listing issues of more than one project
At the moment, you can only add a category filter to an issue query when listing issues of a single project.
When listing tickets of more than one project, the category filter isn't available because categories are not shared between projects. That's okay.
However, it would be nice if you could add a freetext category filter which searches for categories in the selected projects that match this search string.