st/scroll-view: Implement container foreach
foreach_with_internals vfunc is deprecated for long time and not used anymore, so implement just the foreach vfunc instead.
This is should be merged together with mutter!816 (merged)
foreach_with_internals vfunc is deprecated for long time and not used anymore, so implement just the foreach vfunc instead.
This is should be merged together with mutter!816 (merged)