fix bug that occurs when escape is hit on dropdowns

components/Editor.js

@@ -257,8 +257,10 @@ class Editor extends React.Component {
   }
 
   updateLanguage(language) {
+    if (language) {
       this.updateSetting('language', language.mime || language.mode)
     }
+  }
 
   updateBackground({ photographer, ...changes } = {}) {
     if (photographer) {

components/Themes/index.js

@@ -67,6 +67,7 @@ class Themes extends React.PureComponent {
   }
 
   handleThemeSelected = theme => {
+    if (theme) {
       const { toggleVisibility, update } = this.props
       if (theme.id === 'create') {
         toggleVisibility()
@@ -75,6 +76,7 @@ class Themes extends React.PureComponent {
         update(theme.id)
       }
     }
+  }
 
   create = theme => {
     this.props.toggleVisibility()