DEV: Use key over the deprecated keyCode (#13795)

Makes the code a bit more readable. Inspired by https://github.com/emberjs/ember.js/pull/19185

app/assets/javascripts/wizard/components/invite-list.js

@@ -24,7 +24,7 @@ export default Component.extend({
   },
 
   keyPress(e) {
-    if (e.keyCode === 13) {
+    if (e.key === "Enter") {
       e.preventDefault();
       e.stopPropagation();
       this.send("addUser");

app/assets/javascripts/wizard/components/wizard-step.js

@@ -73,8 +73,8 @@ export default Component.extend({
     this.autoFocus();
   },
 
-  keyPress(key) {
-    if (key.keyCode === 13) {
+  keyPress(event) {
+    if (event.key === "Enter") {
       if (this.showDoneButton) {
         this.send("quit");
       } else {