cached features in browser's localStorage are not updated upon cfg-changes in delivery-service

[ccwienk]

Bug Description

If changing "feature-cfg" (relevant for Delivery-Dashboard, e.g. "special components") in Delivery-Service (or rather its backing cfg), such changes are not reflected in Delivery-Dashboard-Instances that were connected against the same delivery-service-instance prior to said cfg-change.

Reproducer

• clear local storage (in webbrowser)
• add specialComponent to delivery-service features cfg (e.g. ocm-gear)
• start delivery-service and delivery-dashboard (connect it against delivery-service-instance)
• check local-storage features entry (in webbrowser)
• modify existing specialComponent, configure different one
• restart delivery-service (so cfg-change is picked up)
• check local-storage (in webbrowser); features entry will still show previous cfg (prior to change)
• add dependency (edit component on landing page), old dependencies are suggested