Support special characters like @

[nicodes]

Hello! I'd really like to use the @ character in my URLs like example.com/@handle. I've tried doing this with route parameters like path="/@:handle" but it doesn't work. For sanity I tried removing the @ character and updated the URLs and everything worked as expected. I looked through the parameters docs but couldn't find anything on unsupported characters. Would be great to use@ and potentially others too!