add videojs-plugin-hotkeys.js

html/poketube.ejs

@@ -383,7 +383,10 @@ a[data-onclick="jump_to_time"] {
   <link href="/css/watch-util.css?v=9893448" rel=stylesheet>
   <link href="/css/watch-navbar.css?v=9893448" rel=stylesheet>
   <link href="/css/poketube.css?v=948934774844" rel=stylesheet>
+
+  <!-- video.js -->
   <link href="/css/videojs-v8.16.0.css" rel="stylesheet" />
+  <script src="/static/videojs-plugin-hotkeys.js"></script>
   <script src="/static/vjs.min.js"></script>
 
   <!-- css files end -->
@@ -621,7 +624,15 @@ background-color: #0000;
             const video = videojs('video', {
                 controls: true,
                 autoplay: false,
-                preload: 'auto'
+                preload: 'auto',
+                  plugins: {
+            hotkeys: {
+      volumeStep: 0.1,
+      seekStep: 5,
+      enableModifiersForNumbers: false
+    },
+  },
+
             });
 
             const qua = new URLSearchParams(window.location.search).get("quality") || "";