Add "Pinned Papers / Favorites" Section #408
Description
Description:
Currently, all research papers are listed together with filtering and search options. However, users often have a few frequently accessed papers (like thesis references or core readings) that they need quick access to.
Proposed Solution:
Add a “Pin” icon/button on each paper card.
When clicked, the paper should move to a “Pinned Papers / Favorites” section at the top of the library.
Users should be able to unpin papers as needed.
Store pin status in localStorage so it persists across sessions.