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

README.md

@@ -82,16 +82,7 @@ InvenTree is designed to be **extensible**, and provides multiple options for **
 </details>
 
 <details>
-  <summary>Client - CUI</summary>
-  <ul>
-    <li><a href="https://getbootstrap.com/">Bootstrap</a></li>
-    <li><a href="https://jquery.com/">jQuery</a></li>
-    <li><a href="https://bootstrap-table.com/">Bootstrap-Table</a></li>
-  </ul>
-</details>
-
-<details>
-  <summary>Client - PUI</summary>
+  <summary>Client</summary>
   <ul>
     <li><a href="https://react.dev/">React</a></li>
     <li><a href="https://lingui.dev/">Lingui</a></li>