REFACTOR(storage): storage repo structure

- Add application.yaml for ArgoCD app-of-apps
- Add kustomization.yaml with storage components
- Add renovate.json for automated updates
- Update all component argocd.yaml repoURLs to storage repo

Components: longhorn, minio, postgresql, postgresql-dev, pgweb, cnpg,
velero

longhorn/argocd.yaml

@@ -14,10 +14,10 @@ spec:
     helm:
       valueFiles:
       - $values/longhorn/helm-values.yaml
-  - repoURL: https://github.com/K3S-HOME/databases.git
+  - repoURL: https://github.com/K3S-HOME/storage.git
     targetRevision: main
     ref: values
-  - repoURL: https://github.com/K3S-HOME/databases.git
+  - repoURL: https://github.com/K3S-HOME/storage.git
     targetRevision: main
     path: longhorn
     kustomize: {}