Heedls 925 temp data to database fix

[AlexJacksonDS]

JIRA link

https://softwiretech.atlassian.net/browse/HEEDLS-925

Description

Add new MultiPageFormData table for use instead of temp data where the temp data is larger than the allowed size. Use this for the Add Course, Admin Fields, and Registration Fields journeys.

Screenshots

Attach screenshots on mobile, tablet and desktop.

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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.

[SteveJacksonSoft]

Nice work.

[SteveJacksonSoft]

Looks good!