Eric Lynema c96e6dd408 feat: Add /nick command usage instruction and broadcast username changes
This commit enhances the chat application by:
- Adding a startup message to inform users about the  command for changing usernames.
- Modifying the  command to broadcast username changes to the chat, using the structured MQTT message format.
2025-07-14 15:26:20 -04:00
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98 KiB
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Rust 100%