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Issue SSH Keys Manager unable to add ssh-ed25519

Spanner_Man

New Pleskian
Context:
It is now possible[1] to perform chosen-prefix attacks against the
SHA-1 hash algorithm for less than USD$50K. For this reason, we will
be disabling the "ssh-rsa" public key signature algorithm that depends
on SHA-1 by default in a near-future release.
When trying to add an ssh-ed25519 key via extension SSH Key Manager v1.2.0 it doesn't add.
It seems like the extension is defaulted to only allow ssh-rsa keys only.

ssh -V OpenSSH_8.2p1 Ubuntu-4ubuntu0.3, OpenSSL 1.1.1f 31 Mar 2020

It is clear that this extension must be updated as I can actually SSH in with an ed25519 key.
 
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