Update getContainer of Modal and Drawer

Editor assessment

The subject `docs: update getContainer of Modal and Drawer` names the prop and both components, which is precise. The failure is the footer: `close https://github.com/ant-design/ant-design/issues/35124` uses neither the token-colon nor token-hash separator, so it is not machine-readable even though platforms may link it. No body explains what about getContainer changed. Hygiene is otherwise good in the headline. The malformed reference line caps what this otherwise clear message can score.