Use the orientation of the focused controller to move windows

This was the original intention but instead of checking the focused
property of the controllers we're using enabled. If both hands or
controllers were used the the first one (the right one) was always
selected because it was the first enabled one in the list (but not
the only one).

Fixes #1885

Author: svillar

app/src/main/cpp/BrowserWorld.cpp

@@ -1162,7 +1162,7 @@ BrowserWorld::ProcessOVRPlatformEvents() {
 vrb::Matrix
 BrowserWorld::GetActiveControllerOrientation() const {
   for (Controller& controller: m.controllers->GetControllers()) {
-    if (controller.enabled)
+    if (controller.focused)
       return controller.transform->GetTransform();
   }
   return vrb::Matrix::Identity();