fix(argo-cd): Pre-set statusbadge.url only when statusbadge is enabled (#2658)

- Add `statusbadge.enabled` to values.yaml as `false`
- Pre-set `statusbadge.url` to `global.domain` URL only when `statusbadge.enabled` is `true`
- Update README.md
- Fix a minor comment typo

Signed-off-by: Bojan Raic <code@bojan.io>

charts/argo-cd/values.yaml

@@ -180,6 +180,10 @@ configs:
     # -- Timeout to refresh application data as well as target manifests cache
     timeout.hard.reconciliation: 0s
 
+    # -- Enable Status Badge
+    ## Ref: https://argo-cd.readthedocs.io/en/stable/user-guide/status-badge/
+    statusbadge.enabled: false
+
     # Dex configuration
     # dex.config: |
     #   connectors: