Add tooltip for long group names

[DTech-Wiz1]

Closes #41

Summary

Improved sidebar group name discoverability by adding a native tooltip for truncated group names.

Changes

• Added title={group.name} to the group name element.
• Full group names are now visible on hover without affecting existing styling or layout.
• Uses the native browser tooltip, requiring no additional dependencies.

[drips-wave]

@DTech-Wiz1 Great news! 🎉 Based on an automated assessment of this PR, the linked Wave issue(s) no longer count against your application limits.

You can now already apply to more issues while waiting for a review of this PR. Keep up the great work! 🚀

Learn more about application limits

[mergekeeper]

Needs review

Linked to #41, but the diff does not match the issue scope.

The pull request modifies dashboard page cards instead of the sidebar group list specified in the linked issue.

Reviewed commit: 865e4227b16ae1e97e86c7cc10930a43de37ccda.

[DTech-Wiz1]

Needs review

Linked to #41, but the diff does not match the issue scope.

The pull request introduces unrelated changes and refactoring in dashboard and groups pages instead of modifying the sidebar component specified in the issue.

Reviewed commit: d2fbf479fe94c4530bc20c084ed7e45733961896.

I have fixed that already. Kindly review and merge please. Thank you!