Fix Send All button logic, while sending ccd's (#412)

## Purpose

The Send All button currently does not trigger the logic chain needed to
update its state.


## Changes

Added functionality to update the Send button state after the amount to
send value is changed.

ConcordiumWallet/Views/AccountsView/SendFunds/SendFund/SendFundPresenter.swift

@@ -580,6 +580,10 @@ class SendFundPresenter: SendFundPresenterProtocol {
                     totalAmount = (GTU(intValue: disposalAmount) - cost).displayValue()
                 }
                 self.viewModel.sendAllAmount = totalAmount
+
+                let newAmount = SendFundsAmount.ccd(token: GTU(intValue: disposalAmount) - cost)
+                self.viewModel.enteredAmount = .success(newAmount)
+
                 self.cost = cost
                 self.energy = value.energy
                 let feeMessage = "sendFund.feeMessage".localized + cost.displayValue()