Replace the bibtex entries table with a card layout (#35565)

* Replace the bibtex entries table with a card layout

Render each reference as a card (citation key, title, author, year and an
error indicator) instead of a table row. Drop @tanstack/react-table, which was
the last consumer of the dependency, and keep @tanstack/react-virtual for
virtualization.

- Add a compact card variant (via a `compact` prop) for the bibtex editor:
  tighter spacing, no border-radius, and cards separated by a single collapsing
  border rather than a gap.
- Add hover and green selected/selected+hover states.
- Move the select-all checkbox out of the scrolling list into the editor
  toolbar so it stays fixed while the list scrolls.
- Lay out title/author/year with nested flex so author and year wrap together.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* In progress dark mode for review

* Slight design changes & updated dark mode

* Small tweaks to dark mode secondary text, and light mode border

* Truncate long authors, also use .summarize() on authors

* Refactor comments: reduce verbose, remove unnecessary

* Fix empty line

---------

Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
Co-authored-by: Tom Wells <wellsthomas@hotmail.co.uk>
GitOrigin-RevId: feaa6718484eefb9e9efb44b99f456910697cb17

services/web/package.json

@@ -104,7 +104,6 @@
     "@slack/webhook": "^7.0.2",
     "@stripe/react-stripe-js": "^3.9.0",
     "@stripe/stripe-js": "^7.7.0",
-    "@tanstack/react-table": "^8.21.3",
     "@xmldom/xmldom": "^0.8.13",
     "accepts": "^1.3.7",
     "ai": "^6.0.169",