fix: sidebar tree ui

[deadlyjack]

No description provided.

[greptile-apps]

Greptile Summary

The PR adds root-folder-specific overflow styling to truncate long labels while retaining the existing behavior for nested rows.

• Adds shrinking and ellipsis declarations for root-folder text.
• Adds a unit test for the root and nested computed-style declarations.

Confidence Score: 4/5

The PR appears safe to merge, although its regression test does not prove that long root labels are actually truncated in production layout.

The selector matches the production root-folder structure and no blocking failure was established, but happy-dom only confirms the CSS declarations and cannot validate the intended ellipsis rendering.

Files Needing Attention: tests/unit/fileSidebarStyles.test.js

Important Files Changed

Filename	Overview
src/sidebarApps/files/style.scss	Adds a production-DOM-matching selector that changes root-folder labels from max-content overflow to shrinkable ellipsis styling.
tests/unit/fileSidebarStyles.test.js	Verifies the declared computed styles but does not exercise the width-dependent truncation behavior in a layout-capable browser.

_{Reviews (1): Last reviewed commit: "fix: sidebar tree ui" | Re-trigger Greptile}