chore: helpful exceptions (#17)

* Helpful exceptions

Author: OskarStark

src/ToolBox/Tool/YouTubeTranscriber.php

@@ -16,10 +16,10 @@ public function __construct(
         private HttpClientInterface $client,
     ) {
         if (!class_exists(Crawler::class)) {
-            throw new \LogicException('The Symfony DomCrawler component is required to use this tool.');
+            throw new \LogicException('The Symfony DomCrawler component is required to use this tool. Try running "composer require symfony/dom-crawler".');
         }
         if (!class_exists(CssSelectorConverter::class)) {
-            throw new \LogicException('The Symfony CSS Selector component is required to use this tool.');
+            throw new \LogicException('The Symfony CSS Selector component is required to use this tool. Try running "composer require symfony/css-selector".');
         }
     }