Managing Favorites sections

Shared/Favorites/DropFavorite.swift

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+import Foundation
+import SwiftUI
+
+struct DropFavorite: DropDelegate {
+    let item: FavoriteItem
+    @Binding var favorites: [FavoriteItem]
+    @Binding var current: FavoriteItem?
+
+    func dropEntered(info _: DropInfo) {
+        guard item != current else {
+            return
+        }
+
+        let from = favorites.firstIndex(of: current!)!
+        let to = favorites.firstIndex(of: item)!
+
+        guard favorites[to].id != current!.id else {
+            return
+        }
+
+        favorites.move(
+            fromOffsets: IndexSet(integer: from),
+            toOffset: to > from ? to + 1 : to
+        )
+    }
+
+    func dropUpdated(info _: DropInfo) -> DropProposal? {
+        DropProposal(operation: .move)
+    }
+
+    func performDrop(info _: DropInfo) -> Bool {
+        current = nil
+        return true
+    }
+}