Add NetBird plugin (#300)

Toggles a machine's NetBird connection from one key and shows the state
on it: the NetBird logo in color when connected, grey when disconnected.

Co-authored-by: Core447 <100139110+Core447@users.noreply.github.com>

Author: ENjxzlt

Plugins.json

@@ -282,5 +282,9 @@
   {
     "url": "https://github.com/morris178/StreamDeckHyprPlugin",
     "hash": "e21317d27644f997cefcddd31835e083afbaea60"
+  },
+  {
+    "url": "https://github.com/ENjxzlt/Netbird-Streamcontroller",
+    "hash": "1dc597c569776810d5018986a4f9723a99d3d6aa"
   }
 ]