Add QR functionality

ui/app/components/account-dropdowns.js

@@ -144,6 +144,18 @@ class AccountDropdowns extends Component {
           },
           'View account on Etherscan',
         ),
+        h(
+          DropdownMenuItem,
+          {
+            closeMenu: () => {},
+            onClick: () => {
+              const { selected, identities } = this.props
+              var identity = identities[selected]
+              actions.showQrView(selected, identity ? identity.name : '')
+            },
+          },
+          'Show QR Code',
+        ),
         h(
           DropdownMenuItem,
           {
@@ -226,6 +238,7 @@ const mapDispatchToProps = (dispatch) => {
       showAccountDetail: (address) => dispatch(actions.showAccountDetail(address)),
       addNewAccount: () => dispatch(actions.addNewAccount()),
       showImportPage: () => dispatch(actions.showImportPage()),
+      showQrView: (selected, identity) => dispatch(actions.showQrView(selected, identity)),
     },
   }
 }