feat(backend): Improve error with missing manifest (#8957) (#9036)

* package tag results better

* Add docs for missing frontend

* better error indication
Fixes #8875

* fix test assertations

* fix test exception

* group setup admin stuff

* add operations supgourp

* add basic structure

* move error code

* fix link

* fix grammar issues

(cherry picked from commit bbeaf0e791)

# Conflicts:
#	docs/docs/faq.md

Co-authored-by: Oliver <oliver.henry.walters@gmail.com>

docs/mkdocs.yml

@@ -153,15 +153,18 @@ nav:
     - User Settings: settings/user.md
     - Reference Patterns: settings/reference.md
     - Admin Interface: settings/admin.md
-    - User Permissions: settings/permissions.md
-    - Single Sign on: settings/SSO.md
-    - Multi Factor Authentication: settings/MFA.md
+    - Setup:
+      - User Permissions: settings/permissions.md
+      - Single Sign on: settings/SSO.md
+      - Multi Factor Authentication: settings/MFA.md
+      - Email: settings/email.md
+      - Currency Support: settings/currency.md
     - Export Data: settings/export.md
     - Import Data: settings/import.md
-    - Error Logs: settings/logs.md
-    - Email: settings/email.md
-    - Background Tasks: settings/tasks.md
-    - Currency Support: settings/currency.md
+    - Operations:
+      - Background Tasks: settings/tasks.md
+      - Error Logs: settings/logs.md
+      - Error Codes: settings/error_codes.md
   - App:
     - InvenTree App: app/app.md
     - Connect: app/connect.md