Fix template conversion (#8976)

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html/includes/forms/convert-template.inc.php

@@ -78,7 +78,7 @@ foreach (explode(PHP_EOL, $vars['template']) as $line) {
             '@foreach ($alert->contacts as $key => $value)',
             ' @endforeach ',
             '@php echo \1; @endphp ',
-            '$value[\'string\']',
+            '{{ $value[\'string\'] }}',
             '{{ $\1[\'\2\'] }}',
             '{{ $alert->\1 }}',
         ];

includes/alerts.inc.php

@@ -391,7 +391,7 @@ function populate($txt, $wrap = true)
 function RunJail($code, $obj)
 {
     $ret = '';
-    eval($code);
+    @eval($code);
     return $ret;
 }//end RunJail()
 
@@ -808,7 +808,7 @@ function ExtTransports($obj)
     global $config;
     $tmp = false;
     $type  = new Template;
-    
+
     // If alert transport mapping exists, override the default transports
     $transport_maps = AlertUtil::getAlertTransports($obj['alert_id']);