commits 2ce62db...86822f5 implement support for typical social signals, like share/boost and like.

i got one like

performing and visualizing simple interactions are table stakes for socializing in the fediverse, so it's an important milestone. i got one like. i want more! 😉

if you're a fan of the crystal programming language check out ktistec. if you're brave enough to try it, i'd love feedback!