Patch Netbird Script | Container Boot-Check | Debian/Ubuntu Only (#528)

* Update Add-Netbird

- Container Online-Check (Boot if LXC stopped)
- Alpine Check -> Abort if not Debian/Ubuntu

* Improve Netbird Json for website

* remove dev comments

* Change copyright

json/add-netbird-lxc.json

@@ -33,11 +33,15 @@
     "notes": [
         {
             "text": "After the script finishes, reboot the LXC then run `netbird up` in the LXC console",
-            "type": "warning"
+            "type": "info"
         },
         {
-            "text": "Execute within the Proxmox shell",
+            "text": "Execute within the Proxmox main shell",
+            "type": "info"
+        }
+        {
+            "text": "The script only works in Debian/Ubuntu, not in Alpine!",
             "type": "warning"
         }
     ]
-}
+}