Keep current back link when navigating through the topics folder side panel

[rtibbles]

Summary

• Fixes error in link generation in folder side navigation panel and ensures that the current back link is preserved during navigation - to be identical to clicking on a folder card in the main navigation panel

References

Fixes #11432

Reviewer guidance

Click on a folder in the left side panel.
Press the X to close out the immersive modal, ensure that it does close.

Do the same when exploring a remote library and ensure navigation occurs correctly.

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Testing checklist

• Contributor has fully tested the PR manually
• If there are any front-end changes, before/after screenshots are included
• Critical user journeys are covered by Gherkin stories
• Critical and brittle code paths are covered by unit tests

PR process

• PR has the correct target branch and milestone
• PR has 'needs review' or 'work-in-progress' label
• If PR is ready for review, a reviewer has been added. (Don't use 'Assignees')
• If this is an important user-facing change, PR or related issue has a 'changelog' label
• If this includes an internal dependency change, a link to the diff is provided

Reviewer checklist

• Automated test coverage is satisfactory
• PR is fully functional
• PR has been tested for accessibility regressions
• External dependency files were updated if necessary (yarn and pip)
• Documentation is updated
• Contributor is in AUTHORS.md

[github-actions]

Build Artifacts

Asset type	Download link
PEX file	kolibri-0.16.0b6.dev0_git.239.g721f1ee1.pex
Windows Installer (EXE)	kolibri-0.16.0b6.dev0+git.239.g721f1ee1-unsigned.exe
Debian Package	kolibri_0.16.0b6.dev0+git.239.g721f1ee1-0ubuntu1_all.deb
Mac Installer (DMG)	kolibri-0.16.0b6.dev0+git.239.g721f1ee1-0.3.0.dmg
Android Package (APK)	kolibri-0.16.0b6.dev0+git.239.g721f1ee1-0.1.0-debug.apk
TAR file	kolibri-0.16.0b6.dev0+git.239.g721f1ee1.tar.gz
WHL file	kolibri-0.16.0b6.dev0+git.239.g721f1ee1-py2.py3-none-any.whl

[marcellamaki]

code change makes sense to me - seems like the better function to use (and luckily past Richard already did the hard part of making it!). I'll let @radinamatic confirm that it's covering all of the scenarios she reported.

[radinamatic]

Not yet, apparently... I tested the DEB asset in both Chrome & Firefox on Ubuntu, and the issue persists 🤔

backlink.mp4

Only one error noted in the Chrome console, not sure if it's relevant.

[rtibbles]

This scenario should now also be covered!

[pcenov]

Works fine now!

[radinamatic]

Manual QA confirms the fix, good to go! 💯 🎉

[marcellamaki]

Additional code changes look good to me. The renaming for folder variable is also helpful - thanks!