Generic Fixes (#1122)

* Fix Hive issue

* Disable RobinHood for Nano

* Validate context is still mounted [skip ci]

* Disable Exolix for new exchanges
Remove duplicate ethereum case

* add nano/banano to manifest/info.plist

* fix qr code issues for nano

* Add Nano-wallet to restore form qr
Add iOS keychain accessibility config

* support app links for ethereum and nano [skip ci]

* catch exceptions from gas price and estimated gas

* Add bitcoin cash to app links
Fix restore from QR for bitcoin cash

* Fixate bottom buttons for create/restore wallet in wallet list page

---------

Co-authored-by: fosse <matt.cfosse@gmail.com>

lib/utils/exception_handler.dart

@@ -161,7 +161,7 @@ class ExceptionHandler {
     "Handshake error in client",
     "Error while launching http",
     "OS Error: Network is unreachable",
-    "ClientException: Write failed, uri=https:",
+    "ClientException: Write failed, uri=http",
   ];
 
   static Future<void> _addDeviceInfo(File file) async {

lib/utils/feature_flag.dart

@@ -1,3 +1,4 @@
 class FeatureFlag {
   static const bool isCakePayEnabled = false;
+  static const bool isExolixEnabled = false;
 }

lib/utils/payment_request.dart

@@ -17,10 +17,12 @@ class PaymentRequest {
     }
 
     if (nano != null) {
-      if (address.contains("nano")) {
-        amount = nanoUtil!.getRawAsUsableString(amount, nanoUtil!.rawPerNano);
-      } else if (address.contains("ban")) {
-        amount = nanoUtil!.getRawAsUsableString(amount, nanoUtil!.rawPerBanano);
+      if (amount.isNotEmpty) {
+        if (address.contains("nano")) {
+          amount = nanoUtil!.getRawAsUsableString(amount, nanoUtil!.rawPerNano);
+        } else if (address.contains("ban")) {
+          amount = nanoUtil!.getRawAsUsableString(amount, nanoUtil!.rawPerBanano);
+        }
       }
     }