Added LostAndFound menu item that triggers LostAndFound mode.

[Paxy]

Added "LostAndFound" trigger to Home Action menu to enable switching to "LostAndFound" mode on nodes with screen. The action switch from Client mode to LostAndFound mode and from LostAndFound to Client mode.
Action is only preformed if device has GPS.

Tested on Heltec Wireless Tracker.

🤝 Attestations

• I have tested that my proposed changes behave as described.
• I have tested that my proposed changes do not cause any obvious regressions on the following devices:
  • Heltec (Lora32) V3
  • LilyGo T-Deck
  • LilyGo T-Beam
  • RAK WisBlock 4631
  • Seeed Studio T-1000E tracker card
  • Other (please specify below)

[Xaositek]

I think we need to account for "Client Mute" and "Client Hidden" roles also with an option to switch back to any of these three (Client, Client Mute, Client Hidden).

[Paxy]

For that to be possible, we would need to record somewhere original mode, to be restored later. Any suggestion, where should we record original mode? It should persist on reboot.

[Xaositek]

Given the "incoming" role could be one of various roles (Client, Client Mute, Client Hidden, Tracker, Sensor, TAK, TAK_Tracker), it may be easier to just convert to "Lost & Found" regardless.

Coming back to "Client" is okay, they can fine tune it later via client app.

[Paxy]

In my first, local, version, I have implemented submenu to activate Lost mode, and return to one of modes chosen from menu. But then removed submenu. In case of emergency, this option should be as easiest as possible to activate.
That's why simple toggle is probbably the best way (without submenu).
Also thinking about adding trigger for the same action with 8-10 button presses (using multipress function) for both devices with the screens (like Heltec Wireless Tracker) and without (for Card Tracker).