Made a more proper supervisor tree for the app

lib/neon_vertigo_service/mqtt/supervisor.ex

@@ -0,0 +1,18 @@
+defmodule NeonVertigoService.Mqtt.Supervisor do
+  use Supervisor
+  
+  def start_link(init_arg) do
+    Supervisor.start_link(__MODULE__, init_arg, name: __MODULE__)
+  end
+
+# Callbacks
+
+  @impl true
+  def init(_init_arg) do
+    children = [
+      NeonVertigoService.Mqtt.Service
+    ]
+
+    Supervisor.init(children, strategy: :one_for_all)
+  end
+end