fix(webui): truncate long folder, collection, and share link names in sidebar #149

Summary

This PR fixes a layout overflow issue in the file list page sidebar, where long folder names, collection names, and share link names would stretch the sidebar wide instead of truncating correctly.

Changes

• Added [&>div>div]:block! to the parent <ScrollArea> components in folder-tree.tsx to override Radix UI's internal viewport wrapper style from display: table to display: block !important.
• Added min-w-0 to the flex container rows of folders, collections, and share links so that they are constrained to the width of the sidebar.
• Added shrink-0 to toggle chevron buttons, icons, and action menu triggers to prevent them from squishing when text truncates.

Verification

Ran workspace verification checks:

• bun run format (Passed)
• bun run lint (Passed)
• bun run typecheck (Passed)
• bun run test (Passed)

Notes

None.

🎬 Cutter preview — PR #149

/workspace — Long folder, collection, and share link names truncate with ellipses in the sidebar.