Merge branch 'develop' into 'main'

Merging develop into main

See merge request !119

templates/backup/config.yaml.twig

 source_directories:
   - /mnt/source
+{% if invoiceninja.enable|default(0) %}
+  - /mnt/invoiceninja
+{% endif %}
 repositories:
   - path: /mnt/borg-repository
     label: local

templates/docker-compose.yml.twig

@@ -556,6 +556,9 @@ services:
     volumes:
       - /usr/local/bin/alertalerta.py:/usr/local/bin/alertalerta.py
       - {{ projectrootfiles }}:/mnt/source:ro
+{% if invoiceninja.enable|default(0) %}
+      - {{ projectrootinvoiceninja }}:/mnt/invoiceninja:ro
+{% endif %}
       - {{ projectrootbackup }}/files:/mnt/borg-repository
       - {{ projectroot }}/backup:/etc/borgmatic.d/
       - {{ projectrootbackup }}/config:/root/.config/borg