* rrweb: add selection observer * Update packages/rrweb/src/record/observer.ts Co-authored-by: Yun Feng <yun.feng0817@gmail.com> * Update packages/rrweb/src/record/observer.ts Co-authored-by: Yun Feng <yun.feng0817@gmail.com> * Update packages/rrweb/src/replay/index.ts Co-authored-by: Yun Feng <yun.feng0817@gmail.com> * remove: repeat updateSelection * Update packages/rrweb/src/record/observer.ts Co-authored-by: Yun Feng <yun.feng0817@gmail.com> * remove: utils sample events Co-authored-by: Yun Feng <yun.feng0817@gmail.com>