添加全屏控制器

src/icons/index.js

@@ -8,6 +8,7 @@ import subtitle from './subtitle.svg';
 import screenshot from './screenshot.svg';
 import danmu from './danmu.svg';
 import setting from './setting.svg';
+import fullscreen from './fullscreen.svg';
 import fullscreenWeb from './fullscreen-web.svg';
 
 const icons = {
@@ -21,6 +22,7 @@ const icons = {
   screenshot,
   danmu,
   setting,
+  fullscreen,
   fullscreenWeb
 };