Remove jQuery dependency

- Resolves #39

app/assets/javascripts/abraham/index.js

@@ -1,8 +1,7 @@
-//= require jquery
 //= require js-cookie/src/js.cookie
 //= require shepherd.js/dist/js/shepherd
 
-$(document).on('turbolinks:before-cache', function() {
-    // Remove visible product tours
-    $(".shepherd-step").remove();
+document.addEventListener('turbolinks:before-cache', function() {
+  // Remove visible product tours
+  document.querySelectorAll(".shepherd-element").forEach(function(el) { el.remove() });
 });

app/views/application/_abraham.html.erb

@@ -2,13 +2,11 @@
   var tour = new Shepherd.Tour(<%= Rails.configuration.abraham.tour_options.html_safe unless Rails.configuration.abraham.tour_options.nil? %>);
 
   tour.on("complete", function() {
-    // ajax
-    return $.ajax({
-      url: "/abraham_histories/",
-      type: "POST",
-      dataType: "json",
-      contentType: "application/json",
-      data: JSON.stringify({
+    // Make AJAX call to save history of tour completion
+    return fetch("/abraham_histories/", {
+      method: "POST",
+      headers: { 'Content-Type': 'application/json' },
+      body: JSON.stringify({
         authenticity_token: '<%= form_authenticity_token %>',
         controller_name: '<%= controller_name %>',
         action_name: '<%= action_name %>',

package.json

@@ -2,7 +2,6 @@
   "name": "abraham",
   "private": true,
   "dependencies": {
-    "jquery": "^3.4.0",
     "js-cookie": "^2.2.0",
     "shepherd.js": "^6.0.0-beta"
   }