Make cluster selection sticky in UI
When selecting a cluster the UI should remember the selection between manage and dashboard apps and subsequent reloads.
Remember cluster selection across reloads
Whenever the user selects a cluster, id of the cluster
will be stored in the browser's localstorage. So when
the user reloads the page or move from dashboard to manage app,
last selected cluster will be fetched from localstorage
and the page will be rendered accordingly.