Merge branch '374-be-able-to-set-nextcloud-s-debug-mode' into 'master'

Resolve "Be able to set Nextcloud's debug mode"

Closes #374

See merge request openappstack/openappstack!136

helmfiles/values/nextcloud.yaml.gotmpl

 nextcloud:
+  # Set this to true to debug your nextcloud
+  debug: false
+
   nextcloud:
     host: "files.{{ .Environment.Values.domain }}"
     password: "{{ requiredEnv "NEXTCLOUD_PASSWORD" }}"