Update Paperless AI Helm Chart to version 0.2.0

Bumped the version of the Paperless AI Helm chart from 0.1.0 to 0.2.0 to
reflect the latest updates. Various templates have been modified for
improved consistency and adherence to best practices.

Notable changes include:
- Removal of unnecessary comments in `pvc.yaml` for a cleaner
  look.
- Simplification of indentation and formatting in `ingress.yaml`,
  `pvc.yaml`, and `service.yaml` to ensure correct rendering of
  Kubernetes resources.
- Fixed comments in templates to clarify their purpose while
  removing inline comments for a streamlined approach.

These changes enhance maintainability and clarity within the
Helm chart templates. No breaking changes are introduced in this
update.

charts/paperless-ai/templates/_helpers.tpl

@@ -64,4 +64,4 @@ Erstellt den Namen des zu verwendenden Service Accounts.
 {{- else -}}
     {{ default "default" .Values.serviceAccount.name }}
 {{- end -}}
-{{- end -}}
+{{- end -}}