Ticket page template modifcation (adding "View Resource" button) is outdated

[tom-coward]

The find needs to change the == in the if statement to === (must've been updated in the Tickets addon), so it's:

                        <xf:if is="$ticket.canUndelete() AND $ticket.discussion_state === 'deleted'">
				<xf:button href="{{ link('tickets/undelete', $ticket) }}" class="button--link" overlay="true">
					{{ phrase('undelete') }}
				</xf:button>
			</xf:if>

(with the indentation)