Format numbers to look nice, update info that is displayed on Character page

utils/StringHelperFunctions.js

@@ -63,4 +63,12 @@ function isString(str) {
 //Returns whether an array contains entirely of string objects
 function containsAllStrings(arr) {
     return arr.every(isString);
+}
+
+//Formats a number with commas and a specific number of decimal digits
+function formatNumber(num, numFractionDigits) {
+    return num.toLocaleString(undefined, {
+        minimumFractionDigits: numFractionDigits,
+        maximumFractionDigits: numFractionDigits
+    });
 }