I added sha256 for discovery and fallback ability.
And implemented sending message using msgbus.
Co-authored-by: Jon Lundy <jon@xuu.cc>
Reviewed-on: https://git.mills.io/prologic/salty-chat/pulls/8
Co-authored-by: xuu <xuu@noreply@mills.io>
Co-committed-by: xuu <xuu@noreply@mills.io>