fix: Add a check for 24 hour window before sending a message (#1084)

Co-authored-by: Sojan Jose <sojan@pepalo.com>

app/views/api/v1/conversations/partials/_conversation.json.jbuilder

@@ -16,6 +16,7 @@ end
 json.inbox_id conversation.inbox_id
 json.status conversation.status
 json.muted conversation.muted?
+json.can_reply conversation.can_reply?
 json.timestamp conversation.messages.last.try(:created_at).try(:to_i)
 json.user_last_seen_at conversation.user_last_seen_at.to_i
 json.agent_last_seen_at conversation.agent_last_seen_at.to_i