[community] search function for support.tpo

Hi Linus,

I know you're just getting started as sysadmin, but I want to check in with you about something we're hoping to get for support.torproject.org: a search function. The ticket was temporarily closed since we couldn't figure out a way to do search: https://trac.torproject.org/projects/tor/ticket/25322. But maybe you can help?

Happy to provide more info as needed.

Thanks, Alison