corrected the logo favicons

templates/base_layout.html

@@ -3,8 +3,8 @@
   <meta charset="utf-8">
   <meta http-equiv="X-UA-Compatible" content="IE=edge">
   <meta name="viewport" content="width=device-width, initial-scale=1">
-  <link rel="icon" type="image/png" href="https://assets.ubuntu.com/v1/3ba2d831-cof-favicon-16x16.ico" sizes="16x16" />
-  <link rel="icon" type="image/png" href="https://assets.ubuntu.com/v1/2c6276dc-cof-favicon-32x32.ico" sizes="32x32" />
+  <link rel="icon" type="image/png" href="https://assets.ubuntu.com/v1/16c27f81-COF%20favicon-16x16.png" sizes="16x16" />
+  <link rel="icon" type="image/png" href="https://assets.ubuntu.com/v1/be7e4cc6-COF-favicon-32x32.png" sizes="32x32" />
   <title>{% if title %}{{ title }}{% else %}Canonical Netplan{% endif %}</title>
 
   <meta name="description" content="{% block meta_description %}Netplan is a YAML network configuration abstraction for various backends. It allows for easily configuring networks by writing a YAML description of the configuration and translates it to the format for the chosen backend, avoiding you the need to learn multiple config syntaxes.{% endblock %}">