Make the exchange receive field always editable and can be taken from QR or Address book (#1230)

lib/src/screens/exchange/exchange_page.dart

@@ -411,10 +411,6 @@ class ExchangePage extends BasePage {
       }
     });
 
-    reaction((_) => exchangeViewModel.isReceiveAddressEnabled, (bool isEnabled) {
-      receiveKey.currentState!.isAddressEditable(isEditable: isEnabled);
-    });
-
     reaction((_) => exchangeViewModel.isReceiveAmountEditable, (bool isReceiveAmountEditable) {
       receiveKey.currentState!.isAmountEditable(isEditable: isReceiveAmountEditable);
     });
@@ -670,7 +666,6 @@ class ExchangePage extends BasePage {
                   ? exchangeViewModel.wallet.walletAddresses.address
                   : exchangeViewModel.receiveAddress,
               initialIsAmountEditable: exchangeViewModel.isReceiveAmountEditable,
-              initialIsAddressEditable: exchangeViewModel.isReceiveAddressEnabled,
               isAmountEstimated: true,
               isMoneroWallet: exchangeViewModel.isMoneroWallet,
               currencies: exchangeViewModel.receiveCurrencies,

lib/src/screens/exchange/exchange_template_page.dart

@@ -174,8 +174,6 @@ class ExchangeTemplatePage extends BasePage {
                                   ? exchangeViewModel.wallet.walletAddresses.address
                                   : exchangeViewModel.receiveAddress,
                               initialIsAmountEditable: false,
-                              initialIsAddressEditable:
-                              exchangeViewModel.isReceiveAddressEnabled,
                               isAmountEstimated: true,
                               isMoneroWallet: exchangeViewModel.isMoneroWallet,
                               currencies: exchangeViewModel.receiveCurrencies,
@@ -328,11 +326,6 @@ class ExchangeTemplatePage extends BasePage {
       }
     });
 
-    reaction((_) => exchangeViewModel.isReceiveAddressEnabled,
-            (bool isEnabled) {
-          receiveKey.currentState!.isAddressEditable(isEditable: isEnabled);
-        });
-
     reaction((_) => exchangeViewModel.provider, (ExchangeProvider? provider) {
       receiveKey.currentState!.isAmountEditable(isEditable: false);
     });

lib/src/screens/exchange/widgets/exchange_card.dart

@@ -23,7 +23,6 @@ class ExchangeCard extends StatefulWidget {
       required this.initialAddress,
       required this.initialWalletName,
       required this.initialIsAmountEditable,
-      required this.initialIsAddressEditable,
       required this.isAmountEstimated,
       required this.currencies,
       required this.onCurrencySelected,
@@ -31,6 +30,7 @@ class ExchangeCard extends StatefulWidget {
       this.currencyValueValidator,
       this.addressTextFieldValidator,
       this.title = '',
+      this.initialIsAddressEditable = true,
       this.hasRefundAddress = false,
       this.isMoneroWallet = false,
       this.currencyButtonColor = Colors.transparent,