Otherwise we will break the old UI.

Rework logic away from template into calling pages.

This makes the appearance at least acceptable.

Also integrate the login as administrator functionality in this menu.

Rename modules/consentAdmin/www/includes/consentSimpleAjax.js to modules/consentAdmin/www/assets/js/consentSimpleAjax.js

This reverts commit 4f58b0ec.

+twig indentation

This seemed the logical place to do it, because it's essentially
a presentation thing (so in Template, not Locale). There's likely
something to be said for sorting by key aswell as sorting by
translated language name. Picked key for now, seems most predictable.

+ fix typos and indentation