Fix socket connectivity on production.

Remove debug code.

ui/assets/js/socket.js

@@ -12,8 +12,8 @@ channel.join()
 let progressBar = document.getElementById("morse-progress")
 
 channel.on("update", (content) => {
-  console.log(content["value"])
   progressBar.value = content["value"]
+  progressBar.innerHTML = content["value"]
 });
 
 export default socket

ui/lib/ui_web/channels/morse_progress_channel.ex

@@ -2,6 +2,6 @@ defmodule UiWeb.MorseProgressChannel do
   use UiWeb, :channel
 
   def join(channel_name, _params, socket) do
-    {:ok, %{hi: :there}, socket}
+    {:ok, channel: channel_name, socket}
   end
 end