Unhandled error when deleting an element from the Element header

There is no error handling in performDelete in components/Element/PanelHeader.vue. It's possible this issue will be obsolete after #1142 (closed) though.

changed milestone to %Arkindex 1.6.1

added P3 Quick Win labels

mentioned in issue #1422 (closed)

assigned to @tlesage

Should be fixed by !1692 (merged)

mentioned in merge request !1692 (merged)

closed with merge request !1692 (merged)