Expand caret should not be displayed if there are no epics to display on Roadmap
Summary
When viewing the roadmap, if an epic has child epic(s) but the children don't meet the date requirements selected in the view (this quarter, this year, within 3 years), the parent epic still has an expand carrot next to it, but when selected, no children are displayed. We should not show the carrot, if there are no child records to display.