[ANN] deedum browser update

[Case Nelson]

Hi Paul,

Your suspicion about the new cert is correct. I've been looking for a way to support it but it seems Flutter is just behind on TLS. I may be able to drop to Dalvik/java and CryptoKit but that's a big jump in complexity and I'm still asking around the flutter community for a hand solving it. If anyone has pointers I'd appreciate it. I'd love to support it in deedum but I fear it's getting into "don't implement crypto" territory.

Sadly Flutter is easy but not simple, and TLS libraries are similar. Gemini's support of TLS 1.2 seems to have stemmed from this issue and I thought the thread about the new algos came to a similar conclusion; it would be nice to use everywhere but libraries aren't caught up.

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Case