When publishing kind 1 or kind 1111 reply events, also deliver them to
the read (inbox) relays of p-tagged users. This follows the NIP-65
recommendation that clients send events to the read relays of each
tagged user so recipients are more likely to see replies.
The inbox delivery is fire-and-forget after the main publish succeeds,
so it does not slow down the UI or block the publish flow.
Chad Curtis
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