SCC-3360: Back from holds situation

[7emansell]

Ticket:

• JIRA ticket SCC-3360

This PR does the following:

• Adds a session storage key from the hold confirmation page
• If user goes back from the hold confirmation to the hold request form
  • Page checks session storage key on mount
  • Warning banner displays ("You've already requested this item")
  • Request form disabled
• If user goes back from the hold confirmation to the EDD request form
  • Page checks session storage key on mount
  • Warning banner displays ("You've already requested a scan of this item")
  • Still allows you to redo the request assuming you might want different options for the scan

How has this been tested?

Make a hold or EDD request, then go back

Accessibility concerns or updates

Checklist:

• I updated the CHANGELOG with the appropriate information and JIRA ticket number (if applicable).
• I have added relevant accessibility documentation for this pull request.
• All new and existing tests passed.

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Name	Status	Preview	Comments	Updated (UTC)
research-catalog	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jun 27, 2025 6:34pm

[7emansell]

Confirmed that this should only appear when the user has just come from back button so it's okay to delete this key once it's "used"– the banner doesn't need to appear if the user returns to this request page from the search results, for example

[7emansell]

and same for on site hold