dart format whole tree

Co-Authored-By: Claude <noreply@anthropic.com>

lib/src/editor/buffer.dart

@@ -27,8 +27,7 @@ class Selection {
       );
 
   @override
-  bool operator ==(Object other) =>
-      other is Selection && other.start == start && other.end == end;
+  bool operator ==(Object other) => other is Selection && other.start == start && other.end == end;
 
   @override
   int get hashCode => Object.hash(start, end);

lib/src/editor/registry.dart

@@ -31,8 +31,7 @@ class EditorRegistry {
 
   Iterable<EditorBuffer> get buffers => _buffers.values;
   EditorBuffer? get(String id) => _buffers[id];
-  EditorBuffer? get active =>
-      _activeId == null ? null : _buffers[_activeId!];
+  EditorBuffer? get active => _activeId == null ? null : _buffers[_activeId!];
 
   /// Open a file. If [path] is already open, returns the existing
   /// buffer (no re-read from disk — the in-memory content is the