Apply suggestions from code review

Co-authored-by: Simon André <smn.andre@gmail.com>

Author: maelanleborgne

src/Translator/doc/index.rst

@@ -78,7 +78,7 @@ Don't worry about your final bundle size, only the translations you use will be
 Configuring the dumped translations
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-By default, all your translations will be dumped as JavaScript. You can restrict the dumped translations by either
+By default, all your translations will be exported. You can restrict the dumped messages by either
 including or excluding translation domains in your ``config/packages/ux_translator.yaml`` file:
 
 .. code-block:: yaml

src/Translator/src/DependencyInjection/Configuration.php

@@ -29,12 +29,12 @@ public function getConfigTreeBuilder(): TreeBuilder
             ->children()
                 ->scalarNode('dump_directory')->defaultValue('%kernel.project_dir%/var/translations')->end()
                 ->arrayNode('excluded_domains')
-                    ->info('List of domains to exclude from the generated translations')
+                    ->info('List of domains to exclude from the generated translations.')
                     ->scalarPrototype()->end()
                     ->defaultValue([])
                 ->end()
                 ->arrayNode('included_domains')
-                    ->info('List of domains to include in the generated translations')
+                    ->info('List of domains to include in the generated translations. By default, all domains are included.')
                     ->scalarPrototype()->end()
                     ->defaultValue([])
                 ->end()

src/Translator/src/DependencyInjection/UxTranslatorExtension.php

@@ -38,10 +38,10 @@ public function load(array $configs, ContainerBuilder $container)
         $dumperDefinition = $container->getDefinition('ux.translator.translations_dumper');
         $dumperDefinition->setArgument(0, $config['dump_directory']);
 
-        if (0 !== \count($config['excluded_domains'])) {
+        if ($config['excluded_domains']) {
             $dumperDefinition->addMethodCall('setExcludedDomains', [$config['excluded_domains']]);
         }
-        if (0 !== \count($config['included_domains'])) {
+        if ($config['included_domains']) {
             $dumperDefinition->addMethodCall('setIncludedDomains', [$config['included_domains']]);
         }
     }