[ANN] deedum browser update

[Sean Conner]

It was thus said that the Great colecmac at protonmail.com once stated:
> Happy to see an update!
> 
> I may have had a related issue, I remember having trouble with redirects
> on tilde.black and gemini.conman.org. In the end the issue was that they
> were closing *right after* sending the redirect, I think, and I wasn't
> capturing the last few bytes. But I was using Go, not Flutter, so I'm not
> sure how much this helps.

  How did you fix the issue?  Or did you?

  -spc