refactor: rename universal to appsets

clusters/cherry/apps/universal-apps.yaml

@@ -1,18 +0,0 @@
-apiVersion: argoproj.io/v1alpha1
-kind: Application
-metadata:
-  name: universal-apps
-  namespace: argocd
-spec:
-  project: argocd
-  syncPolicy:
-    automated:
-      prune: true
-      selfHeal: true
-  destination:
-    server: https://kubernetes.default.svc
-    namespace: argocd
-  source:
-    path: universal/
-    repoURL: https://github.com/vojtechmares/gitops.git
-    targetRevision: HEAD