Feature: Lazy loading

Lazy loaded everything
TODO: The cash flow module when clicking on sub-links, it reloads the whole page, it needs to be diagnosed and fixed, this problem also exists in the other modules
TODO: Rename folders and modules such as account to accounts to match the url

overlord/src/app/profit-loss/profit-loss-routing.module.ts

@@ -7,7 +7,7 @@ import {ProfitLossComponent} from './profit-loss.component';
 
 const profitLossRoutes: Routes = [
   {
-    path: 'ProfitLoss',
+    path: '',
     component: ProfitLossComponent,
     canActivate: [AuthGuard],
     data: {