Add session expiration to order list

src/app/listorders/listorders.component.html

@@ -1,6 +1,7 @@
 <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>
 	<table >
 		<tr>
 			<td width="45%">
@@ -11,10 +12,10 @@
 		  <td width="10%">
 		  </td>
 		  <td width="45%">
-      	<button mat-raised-button color="primary"
-		        class="text" (click)="openDbExport()">
-					Export Orders
-				</button>
+			  <button mat-raised-button color="primary"
+										class="text" (click)="openDbExport()">
+				  Export Orders
+			  </button>
 			</td>	
 	  </tr>
   </table>