Fix method naming and add Animations.js to base template.

app/static/js/Animations.js

 class Animations {
-  static async pulseHighlight(statusElement, ms) {
+  static async pulse(statusElement, ms) {
     statusElement.classList.add("pulse");
     await new Promise(resolve => setTimeout(resolve, ms));
     statusElement.classList.remove("pulse");

app/templates/base.html.j2

@@ -11,6 +11,7 @@
     <link type="text/css" rel="stylesheet" href="{{ url_for('static', filename='fonts/material-icons/material-icons.css') }}">
     <link type="text/css" rel="stylesheet" href="{{ url_for('static', filename='css/materialize.min.css') }}" media="screen,projection"/>
     <link type="text/css" rel="stylesheet" href="{{ url_for('static', filename='css/opaque.css') }}" media="screen,projection"/>
+    <script src="{{ url_for('static', filename='js/Animations.js') }}"></script>
     <script src="{{ url_for('static', filename='js/jsonpatch.min.js') }}"></script>
     <script src="{{ url_for('static', filename='js/socket.io.js') }}"></script>
     <script src="{{ url_for('static', filename='js/list.js') }}"></script>