fix: table and alert parser

Author: YellowPhoenix18

src/Parser/Extension/AlertParser.php

@@ -14,14 +14,15 @@ class AlertParser implements EditorjsParserExtension
     public function parseBlock(HTML5 $html5, DOMDocument $document, object $block, string $prefix): DOMElement
     {
         $type = $block->data->type;
-        $message = new DOMText($block->data->message);
 
         $wrapper = $document->createElement('div');
         $wrapper->setAttribute('class', "{$prefix}-alert {$prefix}-alert-{$type}");
 
         $textWrapper = $document->createElement('div');
 
-        $textWrapper->appendChild($message);
+        if (strlen($block->data->message) > 0) {
+            $textWrapper->appendChild($html5->loadHTMLFragment($block->data->message));
+        }
 
         $wrapper->appendChild($textWrapper);
 

src/Parser/Extension/TableParser.php

@@ -23,7 +23,10 @@ public function parseBlock(HTML5 $html5, DOMDocument $document, object $block, s
         foreach ($block->data->content as $row) {
             $tableRow = $document->createElement('tr');
             foreach ($row as $item) {
-                $tableDefinition = $document->createElement('td', $item);
+                $tableDefinition = $document->createElement('td');
+                if (strlen($item) > 0) {
+                    $tableDefinition->appendChild($html5->loadHTMLFragment($item));
+                }
                 $tableRow->appendChild($tableDefinition);
             }   
             $tableBody->appendChild($tableRow);