Introduce a GroceryListManager facade that delegates to either the existing
in-app GroceryList or a new RemindersGroceryStore backed by EventKit. Users
choose the mode in Settings; when Reminders mode is active the Grocery List
tab is hidden. Recipe-to-reminder grouping uses a local mapping file
(reminder_mappings.data) instead of polluting the reminder's notes field,
with automatic pruning when reminders are deleted externally.
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>
