Setup CI tests (#100)

* use @xarc/xrun to streamline tasks in an imperative manner

* add lint-staged/husky for git hook tasks

* run prettier across all files

* fixing tests

* add ci test workflow

* add a ci workflow

* remove precommit in favor of husky

* add .prettierrc.js

* reformat with prettier

assets/js/helpers/in_array.js

@@ -6,13 +6,13 @@
  * @returns {boolean}
  */
 function in_array(needle, haystack) {
-    for (var i = 0; i < haystack.length; i ++) {
-        if (needle == haystack[i]) {
-            return true;
-        }
+  for (var i = 0; i < haystack.length; i++) {
+    if (needle == haystack[i]) {
+      return true;
     }
+  }
 
-    return false;
+  return false;
 }
 
-module.exports = in_array;
+module.exports = in_array;