Introduction of a new device class (teacherlaptop).

- Wifi-devices will be managed by NetworkManager
 - (USB-)Dockingstation with same MAC as internal device
   will be assigned to virbr1
 - users with role-teacher have privilege
   - to create new NetworkManager connections
   - install additional software
   - change luks-key
 - package plasma-discover will not be removed (for teacherlaptops)
 - http-proxy-Settings will be configured by auto-detect
 - providing sudo-script to mount default-school from server after
   wireguard-connection is established

roles/lmn_fvs/files/policies.json

@@ -1,7 +1,7 @@
 {
     "policies": {
         "Proxy": {
-            "Mode": "system"
+            "Mode": "autoDetect"
         },
         "OverrideFirstRunPage": "https://www.steinbeisschule-reutlingen.de",
         "Homepage": {

roles/lmn_fvs/tasks/main.yml

@@ -90,6 +90,7 @@
       - plasma-discover
     autoremove: true
     state: absent
+  when: not (groups.teacherlaptop is defined and inventory_hostname in groups.teacherlaptop)
 
 - name: Make sure wireshark works for all users after installation and upgrades
   ansible.builtin.copy: