Keyboard shortcuts: volume shortcuts should be local

`globalShortcut` will register the shortcut at the OS level, even when
the app is not focused.

Using `localShortcut` would work, but let's put it in the top menu
instead, where all the other shortcuts are.

renderer/index.js

@@ -716,10 +716,30 @@ function openPlayer (torrentSummary, index, cb) {
     // otherwise, play the video
     state.window.title = torrentSummary.name
     update()
+
+    ipcRenderer.send('onPlayerOpen')
+
     cb()
   })
 }
 
+function closePlayer (cb) {
+  state.window.title = config.APP_WINDOW_TITLE
+  update()
+
+  if (state.window.isFullScreen) {
+    dispatch('toggleFullScreen', false)
+  }
+  restoreBounds()
+  stopServer()
+  update()
+
+  ipcRenderer.send('unblockPowerSave')
+  ipcRenderer.send('onPlayerClose')
+
+  cb()
+}
+
 function openFile (torrentSummary, index) {
   var torrent = state.client.get(torrentSummary.infoHash)
   if (!torrent) return
@@ -743,22 +763,6 @@ function openFolder (torrentSummary) {
   })
 }
 
-function closePlayer (cb) {
-  state.window.title = config.APP_WINDOW_TITLE
-  update()
-
-  if (state.window.isFullScreen) {
-    dispatch('toggleFullScreen', false)
-  }
-  restoreBounds()
-  stopServer()
-  update()
-
-  ipcRenderer.send('unblockPowerSave')
-
-  cb()
-}
-
 function toggleTorrent (torrentSummary) {
   if (torrentSummary.status === 'paused') {
     torrentSummary.status = 'new'