fix for facebook.com (#2313)
fix for facebook.com (#2313)

* fix for facebook.com

1. change back to old class for next/prev icons on page panel
2. Added alternative ID for pagelet to invert icon.
alexanderby/darkreader,darkreader/darkreader,alexanderby/darkreader,darkreader/darkreader,alexanderby/darkreader,darkreader/darkreader