Narrowed is_authenticated check in verfication_modal to only restrict…

[timothyjrogers]

… report button

Description

This PR makes a minor change to the is_authenticated check in the template for the external book link verification modal so that only the "Report Spam" button is locked behind login.

• Closes External Link Modal confirmation window #3371

What type of Pull Request is this?

• Bug Fix
• Enhancement
• Plumbing / Internals / Dependencies
• Refactor

Does this PR change settings or dependencies, or break something?

• This PR changes or adds default settings, configuration, or .env values
• This PR changes or adds dependencies
• This PR introduces other breaking changes

Details of breaking or configuration changes (if any of above checked)

N/A

Documentation

N/A

• New or amended documentation will be required if this PR is merged
• I have created a matching pull request in the Documentation repository
• I intend to create a matching pull request in the Documentation repository after this PR is merged

Tests

• My changes do not need new tests
• All tests I have added are passing
• I have written tests but need help to make them pass
• I have not written tests and need help to write them

I could not find any tests currently exercising this modal, although there are tests for the book and links view in general. I don't know if this change necessarily requires new tests since it just shifts a bit of content in the template, but I'd be happy to try and figure it out if needed.

[mouse-reeve]

I don't know how to reasonably test this either (short of either inspecting the markup in python which sounds janky, or adding front end testing which would be a whole different endeavor entirely), so I went ahead and merged after testing manually. Thank you!