HEEDLS-778 : Course Delegates - Update course delegates to slot in Delegate Groups

[GeorgeBlackwell]

JIRA link

HEEDLS-778

Description

A few changes have been made to Course delegates to make way for the new precursor page that has been added. The changes include removing the side-nav, updating the breadcrumbs and removing the export all button.

Screenshots

---

Developer checks

(Leave tasks unticked if they haven't been appropriate for your ticket.)

I have:

• Run the formatter and made sure there are no IDE errors.
• Written tests for the changes (accessibility tests, unit tests for controller, data services, services, view models, etc)
• Manually tested my work with and without JavaScript. Full manual testing guidelines can be found here: https://softwiretech.atlassian.net/wiki/spaces/HEE/pages/6703648740/Testing
• Updated/added documentation in Swiki and/or Readme. Links (if any) are below:
  • doc_1_here
• Updated my Jira ticket with information about other parts of the system that were touched as part of the MR and have to be sanity tested to ensure nothing’s broken.
• Scanned over my own MR to ensure everything is as expected.

[livzorn]

Nice work!

[AlexJacksonDS]

Just one missed thing to resolve