add the AssetMapper component (#22)

Author: xabbuh

composer.json

@@ -12,6 +12,7 @@
         "phpdocumentor/reflection-docblock": "^5.2",
         "sensio/framework-extra-bundle": "^6.1",
         "symfony/asset": "6.3.*",
+        "symfony/asset-mapper": "6.3.*",
         "symfony/console": "6.3.*",
         "symfony/dotenv": "6.3.*",
         "symfony/expression-language": "6.3.*",