Add icons to buttons in orderlist

src/app/listorders/listorders.component.css

@@ -11,6 +11,10 @@
 	background: lightgray;
 }
 
+.icon{
+	font-family: 'Material Icons';
+}
+
 .orderheader {
 	background-color: lightgrey !important;
 }

src/app/listorders/listorders.component.html

@@ -1,11 +1,16 @@
 <app-header></app-header>
 <div align="center">
 	<h3 class="text">{{(ownerUpdate | async)!.name}}</h3>
-	<p class="text">Session valid until: {{(ownerUpdate | async)!.expiration | date}}</p>
+	<p class="text">Session valid until: {{(ownerUpdate | async)!.expiration | date}}
+		<button mat-icon-button color="primary">
+			<mat-icon class="icon">queue</mat-icon>
+		</button>
+	</p>
 	<table >
 		<tr>
 			<td width="45%">
 				<button class="text" mat-raised-button [routerLink]="['/shop']" color="primary">
+					<mat-icon class="icon">home</mat-icon>
 					Back to Shop
 				</button>
 		  </td>
@@ -14,6 +19,7 @@
 		  <td width="45%">
 			  <button mat-raised-button color="primary"
 										class="text" (click)="openDbExport()">
+				  <mat-icon class="icon">get_app</mat-icon>
 				  Export Orders
 			  </button>
 			</td>