updated simplenews from 1-beta to 2-beta, translated subscription form

composer.json

@@ -77,7 +77,7 @@
         "drupal/search_api_page": "^1.x-dev",
         "drupal/search_api_solr": "^4.1",
         "drupal/select_translation": "^1.x-dev",
-        "drupal/simplenews": "^1.x-dev",
+        "drupal/simplenews": "^2.0@beta",
         "drupal/social_media_links": "^2.8",
         "drupal/string_translation_ui": "^1.2",
         "drupal/strings_i18n_json_export": "1.x-dev@dev",