- Snackbar appears once for every user when V4 is released.
- Copy: Add image tags to make them easier for others to find.
- Why a snackbar? We don’t have push notifications yet.
- Obvs only show to logged-in users b/c only they have access to use SE.
- Existing snackbar advertising SE takes precedence - for new installs, show only existing snackbar, rather than this one.