[BUGFIX] Do not include google captcha when disabled in settings

Fixes: #26
Releases: master, 9.1, 9.0, 8.7

Resources/Private/Templates/Comment/Form.html

@@ -54,7 +54,7 @@ <h3 class="comment-title">
           </div>
           <p><span class="tx-blog-comment-required"><f:translate key="label.required.field"/> <f:translate key="label.required.field.explanation"/></span></p>
 
-          <f:if condition="{settings.comments.google_recaptcha}">
+          <f:if condition="{settings.comments.google_recaptcha._typoScriptNodeValue}">
             <script src="https://www.google.com/recaptcha/api.js"></script>
             <div class="g-recaptcha" data-sitekey="{settings.comments.google_recaptcha.website_key}"></div>
           </f:if>