Add minimal admin js setup

app/assets/javascripts/admin_minimal.js

@@ -0,0 +1,44 @@
+// This is a manifest file that'll be compiled into including all the files listed below.
+// Add new JavaScript/Coffee code in separate files in this directory and they'll automatically
+// be included in the compiled file accessible from http://example.com/assets/application.js
+// It's not advisable to add code directly here, but if you do, it'll appear at the bottom of the
+// the compiled file.
+//
+
+//= require jquery2
+//= require admin/spree/spree-select2
+//= require admin/spree/handlebar_extensions
+
+//= require i18n/translations
+//= require darkswarm/i18n.translate.js
+//= require moment/min/moment.min.js
+//= require moment/locale/ar.js
+//= require moment/locale/ca.js
+//= require moment/locale/de.js
+//= require moment/locale/en-gb.js
+//= require moment/locale/es.js
+//= require moment/locale/fil.js
+//= require moment/locale/fr.js
+//= require moment/locale/it.js
+//= require moment/locale/nb.js
+//= require moment/locale/nl-be.js
+//= require moment/locale/pt-br.js
+//= require moment/locale/pt.js
+//= require moment/locale/ru.js
+//= require moment/locale/sv.js
+//= require moment/locale/tr.js
+//= require moment/locale/pl.js
+
+//= require js-big-decimal/dist/web/js-big-decimal.min.js
+
+window.angular = { module: function(noop){ return { value: function(){} } } }
+
+document.addEventListener("ajax:beforeSend", (event) => {
+  window.Turbo.navigator.adapter.progressBar.setValue(0)
+  window.Turbo.navigator.adapter.progressBar.show()
+})
+
+document.addEventListener("ajax:complete", (event) => {
+  window.Turbo.navigator.adapter.progressBar.setValue(100)
+  window.Turbo.navigator.adapter.progressBar.hide()
+})