fix(editor): always top-align content, even for short files

Row was using CrossAxisAlignment.center by default, so a
short YAML file appeared visually centered in the editor
viewport — uncomfortable in any IDE-style surface where
content is expected to start at the top edge regardless of
how much of the viewport it fills.

Set CrossAxisAlignment.stretch on the outer Row so the
SingleChildScrollView fills the full vertical extent. The
SCV's default scroll origin is the top, so once the
viewport is taller than the content the file renders at
the top with empty space below.

Version 0.1.2 -> 0.1.3.

Signed-off-by: flemming-it <sf@flemming.it>

lib/src/flow_editor_page.dart

@@ -609,6 +609,14 @@ class _EditorPane extends StatelessWidget {
       color: theme.colorScheme.onSurface,
     );
     return Row(
+      // Stretch so the editor's scroll viewport fills the row's
+      // full vertical extent. Without this the Row defaults to
+      // CrossAxisAlignment.center, which centers a short file
+      // vertically — uncomfortable in an IDE where readers
+      // expect content to always start at the top. Default
+      // SingleChildScrollView origin is top, so stretching the
+      // viewport is enough to anchor content at the top edge.
+      crossAxisAlignment: CrossAxisAlignment.stretch,
       children: [
         Expanded(
           flex: 3,

pubspec.yaml

@@ -1,6 +1,6 @@
 name: fai_studio_flow_editor
 description: Swappable inline YAML editor for F∆I Studio flows.
-version: 0.1.2
+version: 0.1.3
 publish_to: 'none'
 repository: https://git.flemming.ai/fai/studio-flow-editor