Add locale support to extract-strings console

- Remove reliance on available locales setting
- Add reliance on translation path setting
- Only create a new translation when a single language is provided
- Remove debug comments

src/classes/Routes/Console/ExtractStrings.php

@@ -10,7 +10,7 @@ class ExtractStrings extends BaseRoute
 	public function __invoke(array $args)
 	{
 		return (new \Friendica\Directory\Controllers\Console\ExtractStrings(
-			$this->container->get('settings')['i18n']['locales'],
+			$this->container->get('settings')['i18n']['path'],
 			$args
 		));
 	}