change 'add person' key to Ctrl+E

static/poseEditor.js

@@ -523,10 +523,9 @@ document.addEventListener("keydown", (event) => {
 });
 document.addEventListener("keyup", (event) => { 
   keyDownFlags[event.code] = false; 
-  if (event.ctrlKey && event.code == "KeyN") {
+  if (event.ctrlKey && event.code == "KeyE") {
     addPerson();
-  }
-  if (event.ctrlKey && event.code == "KeyZ") {
+  } else if (event.ctrlKey && event.code == "KeyZ") {
     if (event.shiftKey) {
       redo();
     } else {