Fix errant   on request to go live page

There’s a good reason for having the ` ` – it stops GOV.UK Notify
being split across two lines (which could happen on a smaller viewport,
eg mobile). Gotta protect the brand.

Not good for the brand for it to be showing up in the page though 😬

This got broken as part of 3f41090a94

The label for a form should never have user-submitted content in it, so
using `safe` is fine.

app/templates/components/radios.html

@@ -7,7 +7,7 @@
   <div class="form-group {% if field.errors %} error{% endif %}">
     <fieldset>
       <legend class="form-label">
-        {{ field.label.text }}
+        {{ field.label.text|safe }}
         {% if field.errors %}
           <span class="error-message">
             {{ field.errors[0] }}