Fix GOV.UK Frontend initAll() on management pages

By loading `kit.js` first this ensures `window.GOVUKPrototypeKit` is available when initialising GOV.UK Frontend

Author: colinrotherham

lib/nunjucks/views/manage-prototype/scripts.njk

@@ -1,3 +1,3 @@
+<script src="/plugin-assets/govuk-prototype-kit/lib/assets/javascripts/kit.js"></script>
 <script src="/manage-prototype/dependencies/govuk-frontend/govuk/all.js"></script>
 <script src="/manage-prototype/dependencies/govuk-frontend/govuk-prototype-kit/init.js"></script>
-<script src="/plugin-assets/govuk-prototype-kit/lib/assets/javascripts/kit.js"></script>