enable autosync and image updates (hopefully)

kluster-deployments/journal/application.yaml

@@ -5,7 +5,8 @@ metadata:
   namespace: argocd
   annotations:
     argocd-image-updater.argoproj.io/image-list: mollre/journal-bot # no version constraints, use newest
-    argocd-image-updater.argoproj.io/write-back-method: declarative # write back to git
+    argocd-image-updater.argoproj.io/alias.update-strategy: latest
+    argocd-image-updater.argoproj.io/write-back-method: git:secret:argocd/journal-repo
 
 spec:
   project: default
@@ -16,3 +17,7 @@ spec:
   destination:
     server: https://kubernetes.default.svc
     namespace: journal
+  syncPolicy:
+    automated:
+      prune: true
+      selfHeal: true