fix(editor): a read-only table's rows fit their cells

A table keeps each row's height on its cells and corrects it after
layout through a transaction, which a read-only editor never applies:
in a path step, a note or a card, a cell of several lines (る, う, つ in
Tae Kim's conjugation tables) ran over its row's borders. Our fork of
the editor now sizes the rows of a read-only table in place, as it
already did the table's height (81c3006c on halkyon/win32-v6; upstream's
main has the same code).

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/pubspec.yaml

@@ -29,7 +29,7 @@ dependencies:
   appflowy_editor:
     git:
       url: https://code.halkyon.app/project-halkyon/appflowy-editor.git
-      ref: 83bdb2a3e66881eff9b2f8afe416b57fc791daf9
+      ref: 81c3006c74e789ed2e470b8612529541b358fd26
   # Anki packages are zip files.
   archive: ^4.0.7
   # Sounds in content (pronunciations): one package for all five platforms; on

halkyon_learn_flutter/test/core/editor/rich_content_view_test.dart

@@ -92,6 +92,46 @@ void main() {
     }
   });
 
+  testWidgets('a row holding a cell of several lines grows to fit it, read '
+      'only as in the editor', (tester) async {
+    Map<String, Object?> cell(int row, String text) => {
+      'type': 'table/cell',
+      'data': {'colPosition': 0, 'rowPosition': row},
+      'children': [
+        {
+          'type': 'paragraph',
+          'data': {
+            'delta': [
+              {'insert': text},
+            ],
+          },
+        },
+      ],
+    };
+    await show(
+      tester,
+      RichContent({
+        'document': {
+          'type': 'page',
+          'children': [
+            {
+              'type': 'table',
+              'data': {'colsLen': 1, 'rowsLen': 2},
+              'children': [cell(0, 'る\nう\nつ'), cell(1, 'す')],
+            },
+          ],
+        },
+      }),
+    );
+    await tester.pump();
+
+    final cells = find.byType(TableCelBlockWidget);
+    expect(
+      tester.getSize(cells.at(0)).height,
+      greaterThan(2 * tester.getSize(cells.at(1)).height),
+    );
+  });
+
   testWidgets('shows the content', (tester) async {
     await show(tester, paragraph('猫は動物です。'));