Bug 1658614 - capture 'MediaController' thread in media preset. r=canaltinova

`MediaPlayback` thread has been renamed to `MediaController` thread, so update the captured thread list for media preset.

Differential Revision: https://phabricator.services.mozilla.com/D86749

devtools/client/performance-new/popup/background.jsm.js

@@ -126,7 +126,7 @@ const presets = {
       "GraphRunner",
       "MediaDecoderStateMachine",
       "MediaPDecoder",
-      "MediaPlayback",
+      "MediaController",
       "MediaTimer",
       "NativeAudioCallback",
       "RenderBackend",