- Unset stream ids if a collection does not contain them
- Automatically select a default stream of a type if the stream type is
enabled but no stream is selected yet when receiving the stream collection
- Warn if there's a collection update via streams-selected and if there are
unexpected streams being selected, or actually selected streams not being
found
- Improve debug output a bit
Among other things this also makes sure that we don't forget a selected stream
id when disabling a track so that when enabling it again later the same one can
be enabled again.
See https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/4344
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/9081>