V4.6.4 bug fixes (#922)

* Fix Concurrent modification exception

* Fix minor UI issues

* Change onramper crypto asset name for Litcoin

* Fix secure storage issue, fetching password/PIN with null

* - Fix Navigation issue while keyboard is displaying
- Remove deprecated screen

* Take currency From/To info from our trade not the returned one

* Fix anon pay fields UI

* Fix Anonpay border/icons UI

* Add extra padding in QR image as a safe layer

* Generalize ignored connection error

* Remove Bio Auth option from desktop

* Fix some Transaction info not parsed correctly

lib/src/screens/restore/restore_from_keys.dart

@@ -1,83 +0,0 @@
-import 'package:flutter/services.dart';
-import 'package:flutter/cupertino.dart';
-import 'package:flutter/material.dart';
-import 'package:cake_wallet/generated/i18n.dart';
-import 'package:cake_wallet/src/widgets/blockchain_height_widget.dart';
-import 'package:cake_wallet/src/widgets/base_text_form_field.dart';
-
-class RestoreFromKeysFrom extends StatefulWidget {
-  @override
-  _RestoreFromKeysFromState createState() => _RestoreFromKeysFromState();
-}
-
-class _RestoreFromKeysFromState extends State<RestoreFromKeysFrom> {
-  final _formKey = GlobalKey<FormState>();
-  final _blockchainHeightKey = GlobalKey<BlockchainHeightState>();
-  final _nameController = TextEditingController();
-  final _addressController = TextEditingController();
-  final _viewKeyController = TextEditingController();
-  final _spendKeyController = TextEditingController();
-  final _wifController = TextEditingController();
-
-  @override
-  void initState() {
-    // _nameController.addListener(() =>
-    // widget.walletRestorationFromKeysVM.name = _nameController.text);
-    // _addressController.addListener(() =>
-    // widget.walletRestorationFromKeysVM.address = _addressController.text);
-    // _viewKeyController.addListener(() =>
-    // widget.walletRestorationFromKeysVM.viewKey = _viewKeyController.text);
-    // _spendKeyController.addListener(() =>
-    // widget.walletRestorationFromKeysVM.spendKey = _spendKeyController.text);
-    // _wifController.addListener(() =>
-    // widget.walletRestorationFromKeysVM.wif = _wifController.text);
-
-    super.initState();
-  }
-
-  @override
-  void dispose() {
-    _nameController.dispose();
-    _addressController.dispose();
-    _viewKeyController.dispose();
-    _spendKeyController.dispose();
-    _wifController.dispose();
-    super.dispose();
-  }
-
-  @override
-  Widget build(BuildContext context) {
-    return Container(
-      padding: EdgeInsets.only(left: 24, right: 24),
-      child: Form(
-        key: _formKey,
-        child: Column(children: <Widget>[
-          BaseTextFormField(
-            controller: _addressController,
-            keyboardType: TextInputType.multiline,
-            maxLines: null,
-            hintText: S.of(context).restore_address,
-          ),
-          Container(
-              padding: EdgeInsets.only(top: 20.0),
-              child: BaseTextFormField(
-                controller: _viewKeyController,
-                hintText: S.of(context).restore_view_key_private,
-              )),
-          Container(
-              padding: EdgeInsets.only(top: 20.0),
-              child: BaseTextFormField(
-                controller: _spendKeyController,
-                hintText: S.of(context).restore_spend_key_private,
-              )),
-          BlockchainHeightWidget(
-              key: _blockchainHeightKey,
-              onHeightChange: (height) {
-                // widget.walletRestorationFromKeysVM.height = height;
-                print(height);
-              }),
-        ]),
-      ),
-    );
-  }
-}