style: apply php-cs-fixer fixes from coding-standard 0.7

Author: alies-dev

src/HtmlCard.php

@@ -15,7 +15,7 @@ class HtmlCard extends Card // phpcs:ignore SlevomatCodingStandard.Classes.Requi
     public $width = self::ONE_THIRD_WIDTH;
 
     /** @inheritDoc */
-    public function __construct(string | null $component = null)
+    public function __construct(?string $component = null)
     {
         parent::__construct($component);
 

src/LaravelMarkdownConverter.php

@@ -4,6 +4,4 @@
 
 use Illuminate\Mail\Markdown;
 
-final class LaravelMarkdownConverter extends Markdown implements MarkdownConverter
-{
-}
+final class LaravelMarkdownConverter extends Markdown implements MarkdownConverter {}