CLIENT_BASE add-favorite/role-change confirmation dialog

[compumike]

(Marking this PR as draft while the upstream cross-platform feature request meshtastic/firmware#8514 is discussed. This PR should just be for discussion of the iOS/macOS specific implementation.)

For people who connect the app directly to a CLIENT_BASE node, add two warnings:

1. warning when they click "Add to favorites"
2. warning when they switch the role to CLIENT_BASE

This should help with people accidentally adding favorites from a CLIENT_BASE. Similar to the existing messages about ROUTER.

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How is this tested?

Tested on iOS and macOS.

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Screenshots/Videos (when applicable)

Clicking "Add to favorites" on a node:

In device configuration, changing role to "Client Base":

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Checklist

• My code adheres to the project's coding and style guidelines.
• I have conducted a self-review of my code.
• I have commented my code, particularly in complex areas.
• I have verified whether these changes require an update to existing documentation or if new documentation is needed, and created an issue in the docs repo if applicable.
• I have tested the change to ensure that it works as intended.

[garthvh]

Has this actually been an issue?

[compumike]

@garthvh not that I've personally experienced, but some people are reporting it happening to them on this discussion: meshtastic/firmware#8367