feat(psn): replace PSN import button with sync review

Remove the PSN import tab; linking now starts a sync.
Show the PSN review link, last played date and PSN expiry notes.
PSN rows hide the hours field; unchecked titles you saw are dismissed,
unseen ones stay open.

README.md

@@ -146,7 +146,9 @@ To Be Played is split into three repositories:
   settings page lists who you follow ("Unfollow") and who follows you ("Remove", a private follower shows as "Private
   user"). Core writes one inbox note per followed user and batch (new games, achievements, status changes, wishlist
   adds; what the profile hides is left out). `/inbox` (bell in the header, with the unread count) lists the newest 50 notes
-  and marks them read; a user who goes private ends the follow with a note. Notes older than 90 days are deleted.
+  and marks them read; a user who goes private ends the follow with a note. Two more notes come from the user's own
+  PlayStation link (`PSN_EXPIRING` about 2 days before it ends, `PSN_EXPIRED` when it has ended), with a link to the
+  settings. Notes older than 90 days are deleted.
 - **What's new**: a dialog on the dashboard shows the news entries the user has not seen yet, newest first. "Got it"
   marks them seen in Auth; closing the dialog any other way shows them again on the next dashboard visit. `/whats-new`
   (menu) lists all entries and marks them seen. Admins publish, preview, edit and delete entries on `/admin/news`.