Add workaround for translations for of opt-in block in editor

We currently don't have tooling for passing translations from scripts to wp.i18n.
This solution provides a temporary way of passing translated strings to wp.i18n for scripts that are
used outside admin pages that are handled via MailPoet.
[MAILPOET-3920]

lib/WP/Functions.php

@@ -752,4 +752,11 @@ class Functions {
   public function wpSetScriptTranslations(string $handle, string $domain = 'default', string $path = null): bool {
     return wp_set_script_translations($handle, $domain, $path);
   }
+
+  /**
+   * @return \WP_Scripts
+   */
+  public function getWpScripts() {
+    return wp_scripts();
+  }
 }