Add canonical link

Author: sgobotta

lib/ex_finance_web/components/layouts/root.html.heex

@@ -8,6 +8,7 @@
     <.live_title suffix=" · Live Apps">
       <%= assigns[:page_title] || "Finanzas" %>
     </.live_title>
+    <link rel="canonical" href="https://finance.liveapps.com.ar" /> 
     <link phx-track-static rel="stylesheet" href={~p"/assets/app.css"} />
     <script
       defer