don't re execute render 2 times + fix plugin

src/app/panels/righthand-panel.js

@@ -55,17 +55,19 @@ function RighthandPanel (appAPI = {}, events = {}, opts = {}) {
   optionViews.appendChild(debuggerTab.render())
   var supportTab = new SupportTab(appAPI, events)
   optionViews.appendChild(supportTab.render())
-  this._view.tabbedMenu.addTab('Compile', 'compileView', compileTab.render())
-  this._view.tabbedMenu.addTab('Run', 'runView', runTab.render())
-  this._view.tabbedMenu.addTab('Settings', 'settingsView', settingsTab.render())
-  this._view.tabbedMenu.addTab('Analysis', 'staticanalysisView', analysisTab.render())
-  this._view.tabbedMenu.addTab('Debugger', 'debugView', debuggerTab.render())
-  this._view.tabbedMenu.addTab('Support', 'supportView', supportTab.render())
+  this._view.tabbedMenu.addTab('Compile', 'compileView', optionViews.querySelector('#compileTabView'))
+  this._view.tabbedMenu.addTab('Run', 'runView', optionViews.querySelector('#runTabView'))
+  this._view.tabbedMenu.addTab('Settings', 'settingsView', optionViews.querySelector('#settingsView'))
+  this._view.tabbedMenu.addTab('Analysis', 'staticanalysisView', optionViews.querySelector('#staticanalysisView'))
+  this._view.tabbedMenu.addTab('Debugger', 'debugView', optionViews.querySelector('#debugView'))
+  this._view.tabbedMenu.addTab('Support', 'supportView', optionViews.querySelector('#supportView'))
   this._view.tabbedMenu.selectTabByTitle('Compile')
 
   self.pluginManager = new PluginManager(appAPI, events)
   events.rhp.register('plugin-loadRequest', (json) => {
-    var content = new PluginTab(appAPI, events, json)
+    var tab = new PluginTab(appAPI, events, json)
+    var content = tab.render()
+    optionViews.appendChild(content)
     this._view.tabbedMenu.addTab(json.title, 'plugin', content)
     self.pluginManager.register(json, content)
   })