Fix zcash updates with changing txIndex

Author: ant013

UnstoppableWallet/UnstoppableWallet/Core/Adapters/ZcashTransactionPool.swift

@@ -64,7 +64,7 @@ class ZcashTransactionPool {
     }
 
     private func sync(own: inout Set<ZcashTransactionWrapper>, incoming: [ZcashTransactionWrapper]) {
-        incoming.forEach { transaction in own.insert(transaction) }
+        incoming.forEach { transaction in own.update(with: transaction) }
     }
 
     func initTransactions() async {

UnstoppableWallet/UnstoppableWallet/Core/Adapters/ZcashTransactionWrapper.swift

@@ -117,14 +117,13 @@ extension ZcashTransactionWrapper: Comparable {
     }
 
     public static func == (lhs: ZcashTransactionWrapper, rhs: ZcashTransactionWrapper) -> Bool {
-        lhs.transactionHash == rhs.transactionHash && lhs.transactionIndex == rhs.transactionIndex
+        lhs.transactionHash == rhs.transactionHash
     }
 }
 
 extension ZcashTransactionWrapper: Hashable {
     public func hash(into hasher: inout Hasher) {
         hasher.combine(transactionHash)
-        hasher.combine(transactionIndex)
     }
 }