Select player elements on youtube and twitch with query selector

src/ext/conf/ExtensionConf.js

@@ -896,6 +896,15 @@ var ExtensionConf = {
       stretch: Stretch.Default,
       videoAlignment: VideoAlignment.Default,
       keyboardShortcutsEnabled: ExtensionMode.Default,
+      DOM: {
+        player: {
+          manual: true,
+          querySelectors: "#movie_player",
+          additionalCss: "",
+          useRelativeAncestor: false,
+          playerNodeCss: "",
+        }
+      }
     },
     "www.netflix.com" : {
       mode: ExtensionMode.Enabled,
@@ -919,6 +928,24 @@ var ExtensionConf = {
         }
       }
     },
+    "www.twitch.tv": {
+      mode: ExtensionMode.Enabled,
+      autoar: currentBrowser.firefox ? ExtensionMode.Enabled : ExtensionMode.Disabled,     
+      override: true,
+      type: 'official',
+      stretch: Stretch.Default,
+      videoAlignment: VideoAlignment.Default,
+      keyboardShortcutsEnabled: ExtensionMode.Default,
+      DOM: {
+        player: {
+          manual: true,
+          querySelectors: ".video-player__container.player",
+          additionalCss: "",
+          useRelativeAncestor: false,
+          playerNodeCss: ""
+        }
+      }
+    },
     "old.reddit.com" : {
       mode: ExtensionMode.Enabled,
       autoar: currentBrowser.firefox ? ExtensionMode.Enabled : ExtensionMode.Disabled,