Truncate long lesson title

[nikkuAg]

Summary

I have added the TextTruncateCss component from the design library to truncate the lesson title that were overlapping with other text.

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References

Issue: #7579
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Reviewer guidance

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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
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• 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.537.g665560a3.pex
Windows Installer (EXE)	kolibri-0.16.0b13.dev0+git.537.g665560a3-unsigned.exe
Debian Package	kolibri_0.16.0b13.dev0+git.537.g665560a3-0ubuntu1_all.deb
Mac Installer (DMG)	kolibri-0.16.0b13.dev0+git.537.g665560a3-0.4.0.dmg
Android Package (APK)	kolibri-0.16.0b13.dev0+git.537.g665560a3-0.1.0-debug.apk
TAR file	kolibri-0.16.0b13.dev0+git.537.g665560a3.tar.gz
WHL file	kolibri-0.16.0b13.dev0+git.537.g665560a3-py2.py3-none-any.whl

[pcenov]

No issues observed while manually testing - implemented as specified above and longer text is being truncated now.

[MisRob]

Code's fine. Thanks @nikkuAg and @pcenov.

[MisRob]

Docs failure is not related to this PR and should be fixed on develop