ADR plugin - fix image rendering

[knowacki23]

Hey, I just made a Pull Request!

This PR has been re-opened since the previous one have been close due to plugin migration from Backstage Monorepo. Previous PR for context: https://github.com/backstage/backstage/pull/23237

Hey everyone! :) I've stepped upon an use-case in which images for ADR files will not render when they required authentication to access them. Fetching image was done via Backstage Frontend.

With this Pull Request I added a fix which transfers fetching to the Backstage Backend and uses auth token to fetch the image from the source.

Changes are also related to issue #16255

:heavy_check_mark: Checklist

• [x] A changeset describing the change and affected packages. (more info)
• [ ] Added or updated documentation
• [x] Tests for new functionality and regression tests for bug fixes
• [ ] Screenshots attached (for UI changes)
• [x] All your commits have a Signed-off-by line in the message. (more info)

[backstage-goalie[bot]]

Changed Packages

Package Name	Package Path	Changeset Bump	Current Version
@backstage-community/plugin-adr-backend	workspaces/adr/plugins/adr-backend	patch	v0.4.17
@backstage-community/plugin-adr	workspaces/adr/plugins/adr	patch	v0.6.19

[kuangp]

Apologies for the delay in review here - been quite busy on my end and wanted to note that I should have time to take a look at this by 6/1

[knowacki23]

Apologies for the delay in review here - been quite busy on my end and wanted to note that I should have time to take a look at this by 6/1

Thanks! :slightly_smiling_face:

[knowacki23]

Looks like the CI is failing saying that the api-report is out of date - can you make sure to run yarn build:api-reports to commit those changes?

My bad, now it should work :slightly_smiling_face:

[knowacki23]

Yay!!! :partying_face: Thank you for your help! :slightly_smiling_face: