Add link to netmail/echomail when showing packet contents

resources/views/system/addedit.blade.php

@@ -506,8 +506,8 @@ use App\Models\Address;
 											<tbody>
 											@foreach ($x as $oo)
 												<tr>
-													<td class="packet">{{ $oo->recv_pkt }}</td>
-													<td>{{ $oo->recv_at }}</td>
+													<td @class(['packet'=>$oo->recv_pkt])>{{ $oo->recv_pkt ?: '-' }}</td>
+													<td>{{ $oo->recv_at ?: '-' }}</td>
 													<td class="text-end">{{ $oo->count }}</td>
 												</tr>
 											@endforeach