Flux: Navigation menu Improvements

[Aubermean]

Intead of grouping things, I think it makes more sense to divide things up, similar to how Flux CLI does:

❯ flux get
The get sub-commands print the statuses of Flux resources.

Usage:
  flux get [command]

Available Commands:
  alert-providers Get Provider statuses
  alerts          Get Alert statuses
  all             Get all resources and statuses
  helmreleases    Get HelmRelease statuses
  images          Get image automation object status
  kustomizations  Get Kustomization statuses
  receivers       Get Receiver statuses
  sources         Get source statuses

So instead of this:

and this:

Something more like:

Flux
  Kustomizations
  Helm Releases
  Images
  Sources
  Alerts
  Alert Providers
  Receivers

#75

[ashu8912]

This is a good idea but i am not very sure if in a UI showing things like this would be a great UX, maybe @stefanprodan or @mgalesloot can help us here