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/stock-movement/stock-movement.component.ts

@@ -44,7 +44,7 @@ export class StockMovementComponent implements OnInit {
 
   show() {
     const l = this.prepareSubmit();
-    this.router.navigate(['StockMovement'], {
+    this.router.navigate(['stock-movement'], {
       queryParams: {
         startDate: l.startDate,
         finishDate: l.finishDate