revert node_changed handle_info deletion

Author: GuzekAlan

lib/live_debugger_web/live/sidebar_live.ex

@@ -135,6 +135,13 @@ defmodule LiveDebuggerWeb.SidebarLive do
     |> noreply()
   end
 
+  @impl true
+  def handle_info({:node_changed, node_id}, socket) do
+    socket
+    |> assign(:node_id, node_id)
+    |> noreply()
+  end
+
   @impl true
   def handle_event("open-sidebar", _, socket) do
     socket