Retry send and cancel send for failed to send messages (#1088)

* is now possible to open the confirmation dialog and pass the transaction id

* task completed added some tests

* changelog

* title visibility set to .visible

ElementX/Sources/Services/Timeline/TimelineItemProxy.swift

@@ -52,6 +52,10 @@ struct EventTimelineItemProxy {
     var id: String {
         item.uniqueIdentifier()
     }
+
+    var transactionID: String? {
+        item.transactionId()
+    }
     
     var deliveryStatus: TimelineItemDeliveryStatus? {
         guard let localSendState = item.localSendState() else {