Add links to sidebar.

src/app/shared/shared.module.ts

@@ -6,6 +6,7 @@ import { SidebarComponent } from './sidebar/sidebar.component';
 import { MenuSelectionDirective } from './_directives/menu-selection.directive';
 import { MenuToggleDirective } from './_directives/menu-toggle.directive';
 import {RouterModule} from '@angular/router';
+import {MatIconModule} from '@angular/material/icon';
 
 
 
@@ -23,9 +24,10 @@ import {RouterModule} from '@angular/router';
     SidebarComponent,
     MenuSelectionDirective
   ],
-  imports: [
-    CommonModule,
-    RouterModule
-  ]
+    imports: [
+        CommonModule,
+        RouterModule,
+        MatIconModule
+    ]
 })
 export class SharedModule { }