add cancel menu

Signed-off-by: Marino Faggiana <marino@marinofaggiana.com>

iOSClient/Main/Collection Common/NCSelectableNavigationView.swift

@@ -106,6 +106,10 @@ extension NCSelectableNavigationView where Self: UIViewController {
 
     var selectActions: [NCMenuAction] {
         var actions = [NCMenuAction]()
+
+        actions.append(.cancelAction {
+            self.tapSelect()
+        })
         if selectOcId.count != selectableDataSource.count {
             actions.append(.selectAllAction(action: collectionViewSelectAll))
         }

iOSClient/Menu/NCMenuAction.swift

@@ -82,6 +82,15 @@ extension NCMenuAction {
         )
     }
 
+    /// Cancel
+    static func cancelAction(action: @escaping () -> Void) -> NCMenuAction {
+        NCMenuAction(
+            title: NSLocalizedString("_cancel_", comment: ""),
+            icon: NCUtility.shared.loadImage(named: "xmark"),
+            action: { _ in action() }
+        )
+    }
+
     /// Copy files to pasteboard
     static func copyAction(selectOcId: [String], hudView: UIView, order: Int = 0, completion: (() -> Void)? = nil) -> NCMenuAction {
         NCMenuAction(