Refactoring of Tokens & Balances (#5372)

* Remove ETH filter

* Remove unused Blockchain reducer+actions

* Simpler Token updates and fetching

* Cleanup use of balances

* Cleanup of balances

* Cleanup of Balances

* Linting

* Update List Component

* Separate tokens from balances

* Refactoring balance fetchin and storing - Part I

* Linting

* Better ETH token description and use

* Working Transfer with new logic

* Add debugging

* Querying the tokens filter on new block

* Fixing the tests - PART I

* Fix txCount

js/src/api/api.js

@@ -59,7 +59,8 @@ export default class Api extends EventEmitter {
           }
 
           return null;
-        });
+        })
+        .catch(() => null);
 
       transport.addMiddleware(middleware);
     }