Revert "bookmarks: for now disable gtk3 bookmarks"
Revert "bookmarks: for now disable gtk3 bookmarks"

This reverts commit fc832bb8ef2f31af522acb91c261f5cfa936103b.

marcelhollerbach/verne,marcelhollerbach/verne,marcelhollerbach/jesus,marcelhollerbach/verne,marcelhollerbach/jesus,marcelhollerbach/jesus