Aligned "add user" button in user management

Author: Naveenkumar27

client/src/app/dashboard/user-management/user-management.component.css

@@ -34,4 +34,8 @@ table {
 .mat-table {
   overflow: auto;
   max-height: 500px;
+}
+
+.fill-space {
+  flex: 1 1 auto;
 }

client/src/app/dashboard/user-management/user-management.component.html

@@ -43,6 +43,7 @@ <h2> User Management</h2>
         <mat-toolbar-row style="float:right;">
 
             <mat-paginator class="paginator" [pageSizeOptions]="[5, 10, 20]"></mat-paginator>
+            <span class="fill-space"></span>
             <button mat-raised-button color="primary" id="addUser" (click)="openAddUser()">Add User</button>
         </mat-toolbar-row>
     </mat-toolbar>