fixed overwrite on internal copy, DST drift in widget anchors, inline errors without controller and removed dead room lookup

lib/widget/async_actions/async_action_button.dart

@@ -31,6 +31,7 @@ class AsyncActionButton extends StatelessWidget {
     errorBuilder: errorBuilder,
     onError: onError,
     onSuccess: onSuccess,
+    showInlineError: showInlineError,
     builder: (context, busy, handler) {
       final lead = busy
           ? AppProgressIndicator.small(
@@ -38,13 +39,11 @@ class AsyncActionButton extends StatelessWidget {
             )
           : (icon == null ? null : Icon(icon));
       final content = lead == null ? child : _leadingLabel(lead, child);
-      final button = ElevatedButton(
+      return ElevatedButton(
         onPressed: handler,
         style: style,
         child: content,
       );
-      if (!showInlineError) return button;
-      return _InlineErrorWrapper(controller: controller, child: button);
     },
   );
 }