add init function to righthandpanel

src/app/righthand-panel.js

@@ -60,8 +60,8 @@ function RighthandPanel (appAPI, events, opts) {
 
   self.render = function () { return element }
 
+  self.init = function () {
     ;[...options.children].forEach((el) => { el.classList.add(css.options) })
-
       // ----------------- toggle right hand panel -----------------
 
     var hidingRHP = false
@@ -121,10 +121,9 @@ function RighthandPanel (appAPI, events, opts) {
     })
 
     if (appAPI.config.exists(EDITOR_WINDOW_SIZE)) {
-    setTimeout(function () {
       self._api.setEditorSize(appAPI.config.get(EDITOR_WINDOW_SIZE))
-    }, 0)
     } else {
       appAPI.config.set(EDITOR_WINDOW_SIZE, getEditorSize())
     }
   }
+}