Fix: Employee was not saving because of isStarred, added that functionality to employee

overlord/src/app/employee/employee-detail/employee-detail.component.css

@@ -0,0 +1,7 @@
+.gold {
+  color: gold;
+}
+
+.pointer {
+  cursor: pointer;
+}

overlord/src/app/employee/employee-detail/employee-detail.component.html

@@ -1,6 +1,9 @@
 <mat-card>
   <mat-card-title-group>
     <mat-card-title>Employee</mat-card-title>
+      <mat-icon matSuffix (click)="item.isStarred = !item.isStarred" class="pointer" [class.gold]="item.isStarred">
+        {{ item.isStarred ? 'star' : 'star_border' }}
+      </mat-icon>
   </mat-card-title-group>
   <mat-card-content>
     <form [formGroup]="form" fxLayout="column">

overlord/src/app/employee/employee.ts

@@ -4,6 +4,7 @@ export class Employee {
   id: string;
   code: number;
   name: string;
+  isStarred: boolean;
   isActive: boolean;
   designation: string;
   salary: number;