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/desktop-docker/tasks/main.yml

@@ -0,0 +1,12 @@
+- name: install docker
+  community.general.pacman:
+    name:
+      - docker
+      - docker-compose
+    state: present
+
+- name: Adding user {{users.client.username}} to relevant docker usergroup  
+  user: 
+    name: "{{users.client.username}}"
+    groups: docker
+    append: yes