Managing Favorites sections

Shared/Views/FavoriteButton.swift

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+import Foundation
+import SwiftUI
+
+struct FavoriteButton: View {
+    let item: FavoriteItem
+    let favorites = FavoritesModel.shared
+
+    @State private var isFavorite = false
+
+    var body: some View {
+        Button {
+            favorites.toggle(item)
+            isFavorite.toggle()
+        } label: {
+            if isFavorite {
+                Label("Remove from Favorites", systemImage: "heart.fill")
+            } else {
+                Label("Add to Favorites", systemImage: "heart")
+            }
+        }
+        .onAppear {
+            isFavorite = favorites.contains(item)
+        }
+    }
+}