Add missing component in operation module.

src/operations/index.ts

@@ -34,7 +34,7 @@ var categoryChartModule = require('./category-chart.component');
 
 import accountModule from '@accountant/accounts';
 
-import { BalanceChartComponent } from './balance-chart.component';
+import { BalanceChartComponent } from './balanceChart.component';
 
 var OperationFactory = require('./operation.factory');
 var OperationController = require('./operation.controller');