Improve Reddit chat and media reliability

apps/dashboard/src/features/conversations/conversation-detail.tsx

@@ -27,7 +27,7 @@ function MessageHistory({ conversation }: { conversation: ConversationDetailResp
   return (
     <ol aria-label="Message history" className="conversation-messages">
       {conversation.messages.map((message) => (
-        <li className={message.isSelf ? 'is-self' : 'is-recipient'} key={`${message.timestamp}-${message.sender}-${message.text}`}>
+        <li className={message.isSelf ? 'is-self' : 'is-recipient'} key={message.eventId ?? `${message.timestamp}-${message.sender}-${message.text}`}>
           <div>
             <strong>{message.isSelf
               ? `You${conversation.owner ? ` (u/${conversation.owner.redditUsername})` : ''}`