Huge role refactoring/cleanup. Other commits will propably follow. Because some bugs will exist. Still important for longrun and also for auto docs/help/slideshow generation

roles/web-app-nextcloud/tasks/system.yml

@@ -0,0 +1,8 @@
+- name: Load System Nextcloud configuration variables
+  include_vars:
+    file: system.yml
+
+- name:     Apply Nextcloud configurations
+  loop:     "{{ nextcloud_system_config }}"
+  command:  "{{nextcloud_docker_exec_occ}} config:system:set {{ item.parameter }}{% if item.type is defined %} --type {{ item.type }}{% endif %} --value {{ item.value }}"
+  # No good changed_when condition available