Add reusable cancellables (#20)

Author: muukii

Package.resolved

@@ -53,6 +53,8 @@ extension CellHighlightAnimation where Self == DisabledCellHighlightAnimation {
   }
 }
 
+import Combine
+
 open class VersatileCell: UICollectionViewCell {
 
   open override var isHighlighted: Bool {
@@ -68,6 +70,9 @@ open class VersatileCell: UICollectionViewCell {
 
   private var _highlightAnimation: any CellHighlightAnimation = .disabled
 
+  /// In prepareForReuse this is going to be a new instance.
+  public private(set) var reusableCancellables: Set<AnyCancellable> = .init()
+
   public override init(
     frame: CGRect
   ) {
@@ -91,6 +96,12 @@ open class VersatileCell: UICollectionViewCell {
     }
   }
 
+  open override func prepareForReuse() {
+    super.prepareForReuse()
+
+    reusableCancellables = .init()
+  }
+
   open override var configurationState: UICellConfigurationState {
     let state = super.configurationState
     return state