feat:(PB-6297) preview public shared folder contents

[victor-ferro]

Description

First part of PB-6297 (public shared folder preview). Until now, a public folder link only showed a card with the folder name and a Download button — the recipient had to download the whole folder as a zip without knowing its contents.

This PR adds a "View" button next to Download that opens a read-only listing of the shared folder contents, fetched without authentication:

• usePublicSharedFolderContent (new hook): fetches folders first and then files per level via getPublicSharedFolderContent, handling pagination (30 items/page), per-level resource tokens (each response provides the token that authorizes listing the next level) and network credentials (returned by the files request, which carries the link code).
• PublicSharedFolderContent (new): breadcrumbs, item selection, sorting, and navigation into subfolders. Exiting the preview returns to the classic card.
• PublicSharedItemList (new): list UI for the items.
• ShareFolderView: renders the new preview when the eye button is clicked.
• ShareFileView: Phosphor icon imports renamed to their non-deprecated *Icon variants (no behavior change).

Scope note: this PR only lists contents. Image thumbnails and per-item download/preview come in two follow-up stacked PRs.

Related Issues

Relates to PB-6297.

Related Pull Requests

Stacked on top of this PR (will be opened next):

• PB-6297-thumbnails — image thumbnails in the listing.
• PB-6297-preview-download — per-item download and file preview.

Checklist

• Changes have been tested locally.
• Unit tests have been written or updated as necessary.
• The code adheres to the repository's coding standards.
• Relevant documentation has been added or updated.
• No new warnings or errors have been introduced.
• SonarCloud issues have been reviewed and addressed.
• QA Passed

Testing Process

• Unit tests: yarn vitest run src/views/PublicShared/hooks/usePublicSharedFolderContent.test.ts (4 tests: initial folders→files fetch sequence, subfolder navigation with the parent level token + breadcrumb back-navigation, no-op navigation guards, and pagination).
• yarn typecheck and yarn lint clean; full unit suite run by the pre-commit hook.
• Manual: opened a public shared folder link (/sh/folder/:token/:code), clicked View, browsed root and subfolders, checked pagination on folders with 30+ items, breadcrumb navigation back to parent levels, and exit back to the download card. Verified with and without link password.

Additional Notes

[CandelR]

Check sonnar and the layout whilst navigate, there are some odd jumps when the content stops loading

[cloudflare-workers-and-pages]

Deploying drive-web with    Cloudflare Pages

Latest commit:	1e12aef
Status:	✅  Deploy successful!
Preview URL:	https://35c2d482.drive-web.pages.dev
Branch Preview URL:	https://pb-6297-folder-link-preview.drive-web.pages.dev

View logs

[CandelR]

The flickering persists when the loaded list is empty. There are also subfolders where, when navigating, the server returns a 500 error and it just keeps loading instead of displaying any kind of error message. I’ve attached a video, if you have any further questions, we can discuss them via DM

Screen.Recording.2026-07-28.at.10.56.05.mov

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
94.4% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud