pad_editbar: Move `syncAnimation` out of `padeditbar` IIFE

This avoids the need for an IIFE.

src/static/js/pad_editbar.js

@@ -77,9 +77,7 @@ ToolbarItem.prototype.bind = function (callback) {
   }
 };
 
-
-const padeditbar = (() => {
-  const syncAnimation = (() => {
+const syncAnimation = (() => {
   const SYNCING = -100;
   const DONE = 100;
   let state = DONE;
@@ -122,9 +120,9 @@ const padeditbar = (() => {
       animator.scheduleAnimation();
     },
   };
-  })();
+})();
 
-  return {
+exports.padeditbar = {
   _editbarPosition: 0,
 
   init() {
@@ -481,7 +479,4 @@ const padeditbar = (() => {
       }
     });
   },
-  };
-})();
-
-exports.padeditbar = padeditbar;
+};