Remove CUI (#8384)

* remove CUI

* fix loading

* fix login middleware

* remove css template functions

* tmp fix for recurtion

* remove old test

* fix assertations

* fix middleware tests

* re-add plugin tags

* remove thirdpartjs

* re-add mfa urls

* remove old js

* remove cui tags

* simplify error testing

* use license endpoint for testing instead

* disable successful test

* revert de-activation

* remove references to old UI customisation

* update docs to remove reference to removed page

* disable availabilty check

* possible fix to importing problem

* Revert "possible fix to importing problem"

This reverts commit ee9fccdc8c.

* remove old get_context_data

* fix migration

* remove unused function

* remove unused stuff

* remove unused template

* fix formatting of readme

.github/workflows/translations.yaml

@@ -38,7 +38,6 @@ jobs:
         uses: ./.github/actions/setup
         with:
           install: true
-          npm: true
           apt-dependency: gettext
       - name: Make Translations
         run: invoke dev.translate