Unauthorised community/collection logo fix

[Atmire-Kristof]

References

Fixes #2688

Description

Fixes comcol-page-logo component to create a proper download link for the logo, attaching an authentication token to the url, akin to how thumbnail component handles bitstream urls. This fixes proper view access to the community/collection logo on their pages.

Instructions for Reviewers

How to test:

• Create a community/collection with a logo
• Remove resource policies from the logo's bitstream (or restrict it to administrators)
• Visit the community/collection's page. The logo should be visible when logged in as administrator.

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[Atmire-Kristof]

My changes were trying to authorise the image the moment the component gets loaded, which caused anonymous users to always see the placeholder, even when they have access. I've fixed this to be more in-line with thumbnail component where it'll only try to authorise the image if the request for its content first fails.

[github-actions[bot]]

Hi @Atmire-Kristof, Conflicts have been detected against the base branch. Please resolve these conflicts as soon as you can. Thanks!

[tdonohue]

@Atmire-Kristof : This has code conflicts. If you wish to have it still considered for 8.0, please get this PR cleaned up and updated to latest main. Otherwise, we'll have to reschedule for 9.0. Thanks!

[kanasznagyzoltan]

I tried to test but I do not know how to make a collection or community logo to be restricted. Could anybody help me how to do that? Thank you!

[kanasznagyzoltan]

@Atmire-Kristof I would like to test this PR, but I do not know how to make a collection or community logo to be restricted. Could you help me?