Custom Dashboards in Monitoring & Exec Page + Frontend Fixes

added default dashboards for point-to-point & aggregation metrics + removed hardcoded dashboards from state

state cleanup + dashboard list persistence in MON tab + dashboard list synchronisation with exec tab (<exec> & <vars> in URL)

Grafana Integration + Elastic Stack Deprecation

meep couch package

frontend update (clone feature, vis fixes, editable attributes)

logs optimizations