Add settings for selecting visible sections (fixes #16)

Shared/Views/FavoriteButton.swift

@@ -1,3 +1,4 @@
+import Defaults
 import Foundation
 import SwiftUI
 
@@ -7,19 +8,27 @@ struct FavoriteButton: View {
 
     @State private var isFavorite = false
 
+    @Default(.visibleSections) private var visibleSections
+
     var body: some View {
-        Button {
-            favorites.toggle(item)
-            isFavorite.toggle()
-        } label: {
-            if isFavorite {
-                Label("Remove from Favorites", systemImage: "heart.fill")
+        Group {
+            if visibleSections.contains(.favorites) {
+                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)
+                }
             } else {
-                Label("Add to Favorites", systemImage: "heart")
+                EmptyView()
             }
         }
-        .onAppear {
-            isFavorite = favorites.contains(item)
-        }
     }
 }