Track which recipe IDs are used as category thumbnails and prefer
different images for the all recipes 2x2 mosaic, falling back to
category thumbnails only when not enough other images are available.
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
The settings view was being popped immediately after push because multiple
navigationDestination(isPresented:) modifiers on the same view caused SwiftUI
to reset bindings when appState published changes. Replaced with a single
navigationDestination(for: SidebarDestination.self) using an explicit
NavigationStack(path:). Also fixed @ObservedObject -> @StateObject on
SettingsView.ViewModel, added AllRecipesListView/AllRecipesCategoryCardView,
and added translations for new strings.
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
