updated char counter logic

assets/javascripts/wizard/helpers/char-counter.js.es6

@@ -1,9 +1,16 @@
 import { registerUnbound } from "discourse-common/lib/helpers";
 import I18n from "I18n";
 
-export default registerUnbound("char-counter", function(body) {
+export default registerUnbound("char-counter", function(body, maxLength) {
     let bodyLength = body ? body.length : 0; 
-    let characterString = bodyLength == 1 ? 'wizard.character' : 'wizard.characters';
-    let finalString = `<div class="body-length">${bodyLength} ${ I18n.t(characterString)}</div>`;
+    let length = maxLength || bodyLength;
+    let characterString = length == 1 ? 'wizard.character' : 'wizard.characters';
+    let finalString;
+
+    if(maxLength) {
+       finalString = `<div class="body-length">${bodyLength} / ${maxLength} ${ I18n.t(characterString)}</div>`;
+    } else {
+       finalString = `<div class="body-length">${bodyLength} ${ I18n.t(characterString)}</div>`;
+    }
   return new Handlebars.SafeString(finalString);
 });