Give a warning about Whisperfish being a third-party application
I would want these items to be written carefully:
- Whisperfish is a third-party application, no support from Signal LLC.
- If you need Signal for life-threatening situations, do not use Whisperfish.
- In order not to lose messages, consider having Signal Desktop ready.
This message should reappear any time the text or current translation has changed on the start of the application.