Puzzle: only show feedback on your moves

Consistent feedback requested it, and prior behavior was a bit strange, especially after capture where the checkmark would now be on the piece of the opposite color.

This has the side-effect of effectively disabling the checkmark for users with animation set to "none", and I'd argue it's better and consistent.

See attached videos for the before and after.

ui/puzzle/src/autoShape.ts

@@ -72,20 +72,19 @@ export default function (opts: Opts): DrawShape[] {
  });
  } else shapes = shapes.concat(makeAutoShapesFromUci(opposite(color), n.threat.pvs[0].moves[0], 'red'));
  }
- const feedback = feedbackAnnotation(n, opts.nodeList[opts.nodeList.length - 2]);
+ const feedback = feedbackAnnotation(n);
  return shapes.concat(annotationShapes(n)).concat(feedback ? annotationShapes(feedback) : []);
 }
 
-function feedbackAnnotation(n: Tree.Node, prev?: Tree.Node): Tree.Node | undefined {
+function feedbackAnnotation(n: Tree.Node): Tree.Node | undefined {
  let glyph: Tree.Glyph | undefined;
- const node = n.puzzle ? n : prev?.puzzle ? prev : undefined;
- switch (node?.puzzle) {
+ switch (n.puzzle) {
  case 'good':
  case 'win':
  glyph = { id: 7, name: 'good', symbol: '✓' };
  break;
  case 'fail':
  glyph = { id: 4, name: 'fail', symbol: '✗' };
  }
- return node && glyph && { ...node, glyphs: [glyph] };
+ return glyph && { ...n, glyphs: [glyph] };
 }