Watch core for changes if KDS option is provided, in devserver-with-kds

[thesujai]

Summary

As all kds components are linked to core, its better to watch core if kds path is provided, also suggested in #11667 (comment)
…

References

Fixes #11667
…

Reviewer guidance

…

---

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-0.16.0b13.dev0_git.2.g79c3d0d7.pex
Windows Installer (EXE)	kolibri-0.16.0b13.dev0+git.2.g79c3d0d7-unsigned.exe
Debian Package	kolibri_0.16.0b13.dev0+git.2.g79c3d0d7-0ubuntu1_all.deb
Mac Installer (DMG)	kolibri-0.16.0b13.dev0+git.2.g79c3d0d7-0.3.0.dmg
Android Package (APK)	kolibri-0.16.0b13.dev0+git.2.g79c3d0d7-0.1.0-debug.apk
TAR file	kolibri-0.16.0b13.dev0+git.2.g79c3d0d7.tar.gz
WHL file	kolibri-0.16.0b13.dev0+git.2.g79c3d0d7-py2.py3-none-any.whl

[nucleogenesis]

Tested this out and it worked perfectly:

• Ran yarn devserver-with-kds ../path/to/kds user_auth
• Changed KTextbox to look really weird - the server reloaded and reflected my changes
• Changed something in user_auth and it reloaded
• Changed something in device and it did not reload

Thanks so much @thesujai for your work on this!

[iskipu]

Nice work @thesujai 🎉 I have one question were u using linux for development ? bcz i tried the exact same solution few weeks back in my windows machine (#11667 (comment)) and it did not work properly ( mostly bcz of how powershell/cmd treats the arguments passed)

[rtibbles]

Note that we may hold off on merging this until 0.16.0 has been released, in case there is any question about delays in merging!