root owner issue

https://github.com/KrishKrosh/TrackWeight/blob/e322cae241d29afbee2860a6b585e9fe3974bd0c/TrackWeight/SettingsView.swift#L10

If SettingsView is not the root owner of ContentViewModel, this will create a new instance every time the view is recreated.

That means:
- devices reload unexpectedly
- selected device resets
- inconsistent state across app

FIX:
@EnvironmentObject var viewModel: ContentViewModel

Open TrackWeight/SettingsView.swift at line 10 and inspect how ContentViewModel is provided to SettingsView. Confirm whether SettingsView owns the model or receives it from the environment. The work is done when the view uses the shared environment object and devices and the selected device no longer reset when the view is recreated.

Written by the indexing model from the issue text.