fix(jellyfin): Add and Jisho on the word's own line, entries unfold after 0.6 s

The Watch screen's entries carry Jisho's link and Add at the end of the headword's line, aligned right, rather than beside the senses; and an entry unfolds over the list once the pointer has rested on it for 0.6 s, as 0.3 s opened entries the pointer only passed over.

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

halkyon_learn_flutter/test/feature/jellyfin/watch_screen_test.dart

@@ -534,7 +534,7 @@ void main() {
     await mouse.moveTo(
       tester.getCenter(find.textContaining('sense 1 of a long').first),
     );
-    await tester.pump(const Duration(milliseconds: 400));
+    await tester.pump(const Duration(milliseconds: 700));
     await tester.pumpAndSettle();
     expect(find.byType(VocabularySensesView), findsOneWidget);
     expect(find.text('station, as in sense 6 of a long entry'), findsOneWidget);