feat(app): More info for studysets, paths, notes and PDFs

Wherever the old menus offered it: the studyset's options, a path's
(in the list and in the runner), a note's, and a PDF's, all on the
shared sheet the cards use: when it was made (from its UUID v7 id) and
last changed where that is kept, its ids to copy (parent, studyset,
PDF), and for a PDF its file.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MMm7usAo6q9ZZRoPkWjoxi
Signed-off-by: Tizian 「ティツィアーン」 <raisondetredev@pm.me>

halkyon_learn_flutter/lib/l10n/app_localizations_en.dart

@@ -2448,6 +2448,12 @@ class AppLocalizationsEn extends AppLocalizations {
   @override
   String get moreInfoPdfId => 'PDF source ID';
 
+  @override
+  String get moreInfoParentId => 'Parent ID';
+
+  @override
+  String get moreInfoFile => 'File';
+
   @override
   String get moreInfoReviews => 'Reviews';