refactor/add headers to client side scripts

src/public/scripts/dollarFormat.js

@@ -1,12 +1,12 @@
+
 /** 
  * Function takes in a number and formats it to currency
- * @param {integer}
- * @returns nuber formatted in currency
+ * @param {number} value
+ * @returns {string} number formatted in currency
  */
-
 document.addEventListener("DOMContentLoaded", () => {
     const number = document.querySelectorAll(".planGoal");
-    number.forEach(value => {
+    number.forEach((value) => {
         num = parseFloat(value.textContent);
         if (num >= 999999) {
             value.textContent = "$" + (num /= 1000000) + "M";