Icebreakers when on date-timer page

[sueszli]

Show a nice little ice breaker to keep the conversation going when on the timer page.

See: https://www.nytimes.com/2015/01/09/style/no-37-big-wedding-or-small.html

[MJDeligan]

As discussed, these will be configurable by Organizers.

For the time being we could add a couple hardcoded ones to the frontend.