Migrate from channel to phoenix live view.

Move phoenix config to ui project.
Sync progress on page load.

ui/lib/ui_web/controllers/page_controller.ex

@@ -1,25 +1,17 @@
 defmodule UiWeb.PageController do
   use UiWeb, :controller
+  alias Phoenix.LiveView
 
   def index(conn, _params) do
-    conn |> send_resp(204, "")
+    send_resp(conn, 204, "")
   end
 
   def instructions(conn, _params) do
-    conn |> render(:instructions)
+    render(conn, :instructions)
   end
 
   def morse(conn, _params) do
-    conn |> render(:morse)
+    LiveView.Controller.live_render(conn, UiWeb.MorseLive, session: %{})
   end
 
-  def start(conn, _params) do
-    response =
-      case Morse.Server.start_morse() do
-        :ok -> "Started."
-        {:error, :already_started} -> "The process is still in progress..."
-      end
-
-    conn |> text(response)
-  end
 end