Fix no resources available" instead of the available libraries

[AllanOXDi]

Summary

Fixes the showing of "No resources available" instead of the available other libraries.

Before

After

Library0.17.5.mp4

closes #13071

References

#13071

[github-actions]

Build Artifacts

Asset type	Download link
PEX file	kolibri-0.18.0a3.dev0_git.28.g7407b2b4.pex
Windows Installer (EXE)	kolibri-0.18.0a3.dev0+git.28.g7407b2b4-windows-setup-unsigned.exe
Debian Package	kolibri_0.18.0a3.dev0+git.28.g7407b2b4-0ubuntu1_all.deb
Mac Installer (DMG)	kolibri-0.18.0a3.dev0+git.28.g7407b2b4.dmg
Android Package (APK)	kolibri-0.18.0a3.dev0+git.28.g7407b2b4-0.1.4-debug.apk
Raspberry Pi Image	kolibri-pi-image-0.18.0a3.dev0+git.28.g7407b2b4.zip
TAR file	kolibri-0.18.0a3.dev0+git.28.g7407b2b4.tar.gz
WHL file	kolibri-0.18.0a3.dev0+git.28.g7407b2b4-py2.py3-none-any.whl

[LianaHarris360]

Tagging @radinamatic @pcenov for QA review

[radinamatic]

Assets from this PR were tested on both Ubuntu and Windows 11, and the originally reported issue is indeed corrected.

---

However, in the scenario that we were discussing on Slack with @rtibbles, when there are no resources in the library and no peers in the local network:

• admin would (eventually) see the channels on Kolibri Studio (as in the screenshot), but
• non-admin users would see a rather empty page, which is not ideal

For that reason @rtibbles suggested we would want that page to be more dynamic based on whether there are local libraries available, and preserve the messaging from the content unavailable page for the empty state.

So the idea is for the non-admin users to keep the current change from this PR IF there are other peers in the local network (and something does appear under the Other libraries). And in case there are no other peers around, and the class server has no channels, display the No resources available heading and Ask your coach or administrator for assistance below.

cc @marcellamaki @jtamiace