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

postgresql/argocd/postgresql.yaml

@@ -9,7 +9,7 @@ spec:
   project: default
 
   source:
-    repoURL: https://github.com/K3S-HOME/databases.git
+    repoURL: https://github.com/K3S-HOME/storage.git
     targetRevision: main
     path: postgresql