docs: Improve NOTES.txt

[viccuad]

Description

Attempt to improve NOTES.txt that show on installation/upgrade.

While it isn't easy to summarize Kubewarden, we could do better here.

Test

Additional Information

Tradeoff

Potential improvement

[flavio]

nice improvement, thanks for having started this PR

[flavio]

Suggested change

	You now have a default PolicyServer running in your cluster ready to run any
	You now have a `PolicyServer` resource named `default` running in your cluster. It is ready to run any

[flavio]

Discover ready to use policies by visiting https://artifacthub.io/packages/search?kind=13

[olblak]

I think we could leverage if statement in the NOTE.txt such as

kubewarden-defaults installed.

You now have a PolicyServer running in your cluster ready to run any 
`clusteradmissionpolicies.policies.kubewarden.io` or
`admissionpolicies.policies.kubewarden.io` resources.

For more information on how to define policies, check out https://kubewarden.io/

{{ if .Values.recommendedPolicies }}

Installed recommended policies
* kubewarden/policies/allow-privilege-escalation-psp
-> https://artifacthub.io/packages/kubewarden/allow-privilege-escalation-psp/allow-privilege-escalation-psp
* kubewarden/policies/host-namespaces-psp
-> https://artifacthub.io/packages/kubewarden/host-namespaces-psp/host-namespaces-psp
* kubewarden/policies/pod-privileged
-> https://artifacthub.io/packages/kubewarden/pod-privileged-policy/pod-privileged-policy
* kubewarden/policies/user-group-psp
-> https://artifacthub.io/packages/kubewarden/user-group-psp/user-group-psp
* kubewarden/policies/hostpaths-psp
-> https://artifacthub.io/packages/kubewarden/hostpaths-psp/hostpaths-psp
* kubewarden/policies/capabilities-psp
-> https://artifacthub.io/packages/kubewarden/capabilities-psp/capabilities-psp

{{- end }}

[viccuad]

Addressed feedback, now it displays:

$ helm upgrade -i --wait --namespace kubewarden --create-namespace kubewarden-crds ./charts/kubewarden-crds
Release "kubewarden-crds" has been upgraded. Happy Helming!
NAME: kubewarden-crds
LAST DEPLOYED: Tue Aug  1 12:30:51 2023
NAMESPACE: kubewarden
STATUS: deployed
REVISION: 8
TEST SUITE: None
NOTES:
Kubewarden CRDs now available: `clusteradmissionpolicies.policies.kubewarden.io`,
`admissionpolicies.policies.kubewarden.io`, `policyservers.policies.kubewarden.io`.

Policy report CRDs now available: `policyreports.wgpolicyk8s.io`,
`clusterpolicyreports.wgpolicyk8s.io`.
$ helm upgrade -i --wait --namespace kubewarden --create-namespace kubewarden-controller ./charts/kubewarden-controller
Release "kubewarden-controller" has been upgraded. Happy Helming!
NAME: kubewarden-controller
LAST DEPLOYED: Tue Aug  1 12:15:11 2023
NAMESPACE: kubewarden
STATUS: deployed
REVISION: 4
TEST SUITE: None
NOTES:
You can now start defining admission policies by using the cluster-wide
`clusteradmissionpolicies.policies.kubewarden.io` or the namespaced
`admissionpolicies.policies.kubewarden.io` resources.

For more information check out https://docs.kubewarden.io.
$ helm upgrade -i --wait --namespace kubewarden --create-namespace kubewarden-defaults ./charts/kubewarden-defaults --set recommendedPolicies.enabled=True --set recommendedPolicies.defaultPolicyMode=monitor
Release "kubewarden-defaults" has been upgraded. Happy Helming!
NAME: kubewarden-defaults
LAST DEPLOYED: Tue Aug  1 12:14:19 2023
NAMESPACE: kubewarden
STATUS: deployed
REVISION: 9
TEST SUITE: None
NOTES:
You now have a `PolicyServer` named `default` running in your cluster.
It is ready to run any `clusteradmissionpolicies.policies.kubewarden.io` or
`admissionpolicies.policies.kubewarden.io` resources.

Installed recommended policies:
- no-privilege-escalation
  module: kubewarden/policies/allow-privilege-escalation-psp:v0.2.6
- no-host-namespace-sharing
  module: kubewarden/policies/host-namespaces-psp:v0.1.6
- no-privileged-pod
  module: kubewarden/policies/pod-privileged:v0.2.7
- do-not-run-as-root
  module: kubewarden/policies/user-group-psp:v0.4.9
- do-not-share-host-paths
  module: kubewarden/policies/hostpaths-psp:v0.1.9
- drop-capabilities
  module: kubewarden/policies/capabilities-psp:v0.1.13

For more information check out https://docs.kubewarden.io/quick-start.
Discover ready to use policies at https://artifacthub.io/packages/search?kind=13.

[flavio]

nice changes