Generic fixes and enhancements (#1083)

* Add exception handler to fiat APIs
Increase send card size for coin control
Fix Monero.com unspent coins hive box issue
minor bug fix

* Remove EIP-1559 parameters from Eth transaction
Enhance error reporting

* Throw error if not enough monero utx outputs are selected

* Fix Search text color

* Fix Ethereum sending EIP-1559 transactions

* Add transaction data to ERC20 transactions

* Add input check in single output transactions as well

* Fix Node deletion issue
Handle user input error in anonpay

* Remove exception handler from fiat conversion since it's not working with isolates

* Require enough utxo for amount and fees; More insightful Error messages

* Add cakewallet to applinks [skip ci]

* Add cakewallet app link for iOS [skip ci]

* Add applink depending on app scheme variable

* Add applink in iOS custom to the app getting built [skip ci]

* Handle normal app links without considering them as Payment URIs

* Minor fix [skip ci]

* Fixate encrypt package version as the recent update they made has some issues [skip ci]

---------

Co-authored-by: Konstantin Ullrich <konstantinullrich12@gmail.com>

lib/src/screens/dashboard/home_settings_page.dart

@@ -9,6 +9,7 @@ import 'package:cake_wallet/src/screens/settings/widgets/settings_picker_cell.da
 import 'package:cake_wallet/src/screens/settings/widgets/settings_switcher_cell.dart';
 import 'package:cake_wallet/themes/extensions/address_theme.dart';
 import 'package:cake_wallet/themes/extensions/menu_theme.dart';
+import 'package:cake_wallet/themes/extensions/picker_theme.dart';
 import 'package:cake_wallet/view_model/dashboard/home_settings_view_model.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_mobx/flutter_mobx.dart';
@@ -55,7 +56,8 @@ class HomeSettingsPage extends BasePage {
                   padding: const EdgeInsetsDirectional.only(start: 16),
                   child: TextFormField(
                     controller: _searchController,
-                    style: TextStyle(color: Theme.of(context).dialogTheme.backgroundColor),
+                    style: TextStyle(
+                        color: Theme.of(context).extension<PickerTheme>()!.searchHintColor),
                     decoration: InputDecoration(
                       hintText: S.of(context).search_add_token,
                       prefixIcon: Image.asset("assets/images/search_icon.png"),

lib/src/screens/root/root.dart

@@ -140,7 +140,7 @@ class RootState extends State<Root> with WidgetsBindingObserver {
                       }
                       _reset();
                       totpAuth.close(
-                        route: launchUri != null ? Routes.send : null,
+                        route: _isValidPaymentUri() ? Routes.send : null,
                         arguments: PaymentRequest.fromUri(launchUri),
                       );
                       launchUri = null;
@@ -152,7 +152,7 @@ class RootState extends State<Root> with WidgetsBindingObserver {
               } else {
                 _reset();
                 auth.close(
-                  route: launchUri != null ? Routes.send : null,
+                  route: _isValidPaymentUri() ? Routes.send : null,
                   arguments: PaymentRequest.fromUri(launchUri),
                 );
                 launchUri = null;
@@ -161,7 +161,7 @@ class RootState extends State<Root> with WidgetsBindingObserver {
           },
         );
       });
-    } else if (launchUri != null) {
+    } else if (_isValidPaymentUri()) {
       widget.navigatorKey.currentState?.pushNamed(
         Routes.send,
         arguments: PaymentRequest.fromUri(launchUri),
@@ -183,4 +183,6 @@ class RootState extends State<Root> with WidgetsBindingObserver {
     _isInactive = value;
     _isInactiveController.add(value);
   }
+
+  bool _isValidPaymentUri() => launchUri?.path.isNotEmpty ?? false;
 }

lib/src/screens/send/send_page.dart

@@ -100,7 +100,7 @@ class SendPage extends BasePage {
   AppBarStyle get appBarStyle => AppBarStyle.transparent;
 
   double _sendCardHeight(BuildContext context) {
-    final double initialHeight = sendViewModel.hasCoinControl ? 490 : 465;
+    final double initialHeight = sendViewModel.hasCoinControl ? 500 : 465;
 
     if (!ResponsiveLayoutUtil.instance.isMobile) {
       return initialHeight - 66;

lib/src/screens/settings/manage_nodes_page.dart

@@ -34,13 +34,12 @@ class ManageNodesPage extends BasePage {
           SizedBox(height: 20),
           Observer(
             builder: (BuildContext context) {
+              int itemsCount = nodeListViewModel.nodes.length;
               return Flexible(
                 child: SectionStandardList(
                   sectionCount: 1,
                   dividerPadding: EdgeInsets.symmetric(horizontal: 24),
-                  itemCounter: (int sectionIndex) {
-                    return nodeListViewModel.nodes.length;
-                  },
+                  itemCounter: (int sectionIndex) => itemsCount,
                   itemBuilder: (_, index) {
                     return Observer(
                       builder: (context) {