Fix typos in doc comment and benchmark runner (facebook#56396)

Summary:
Pull Request resolved: facebook#56396

- "Wwhether" -> "Whether" in YGNode.h
- "independants" -> "independent" in run-bench.ts

X-link: facebook/yoga#1925

Reviewed By: cortinico

Differential Revision: D100143075

Pulled By: fabriziocucci

fbshipit-source-id: 1b20d0010bf9265d95be194613f6962ff31a4ba9

Author: J8118

packages/react-native/ReactCommon/yoga/yoga/YGNode.h

@@ -257,7 +257,7 @@ YG_EXPORT bool YGNodeIsReferenceBaseline(YGNodeConstRef node);
 YG_EXPORT void YGNodeSetNodeType(YGNodeRef node, YGNodeType nodeType);
 
 /**
- * Wwhether a leaf node's layout results may be truncated during layout
+ * Whether a leaf node's layout results may be truncated during layout
  * rounding.
  */
 YG_EXPORT YGNodeType YGNodeGetNodeType(YGNodeConstRef node);