Display ETH balance in overlay account selector (#4588)

* Add account balance display from ParityBar

* Ellipsis with title

* Balance display in Dapp permissions

* Add balance to vault account selector

* Add key prop to accounts in Vault

* Fix failing test (missing redux prop)

js/src/views/Dapps/dapps.js

@@ -80,7 +80,7 @@ class Dapps extends Component {
 
     return (
       <div>
-        <DappPermissions store={ this.permissionStore } />
+        <DappPermissions permissionStore={ this.permissionStore } />
         <DappsVisible store={ this.store } />
         <Actionbar
           className={ styles.toolbar }