fix: resolve leaflet marker images through webpack

webpack.config.js

@@ -42,7 +42,6 @@ Encore
     .copyFiles([
         { from: './public/typo3conf/ext/ep_theme/Resources/Private/Assets/images', to: 'images/[name].[ext]' },
         { from: './public/typo3conf/ext/ep_theme/Resources/Private/Assets/images/icons', to: 'images/icons/[name].[ext]' },
-        { from: './node_modules/leaflet/dist/images', to: 'images/[name].[ext]' },
     ])
     // The content hash is what lets .htaccess serve these as `immutable` for a year: a new
     // build is a new URL, so a browser never has to revalidate one. It also replaces TYPO3's