scroll issue in puzzle mode on phone

[domino14]

RPReplay_Final1709498760.mov

[andy-k]

• here's Chrome (122.0.6261.94 / x86_64 Mac) Elements when scrolled to end of puzzle page on narrow screen with Analyzer open. notice three elements with anomalous heights (they kept increasing until they couldn't).

• all three seem to correspond to antd's Affix.

$ git grep -n '\bAffix\b'
liwords-ui/src/gameroom/board_panel.tsx:9:import { Button, Tooltip, Affix, App } from 'antd';
liwords-ui/src/gameroom/board_panel.tsx:1678:      <Affix offsetTop={126} className="rack-affix">
liwords-ui/src/gameroom/board_panel.tsx:1680:      </Affix>
liwords-ui/src/gameroom/board_panel.tsx:1716:        <Affix offsetTop={126} className="rack-affix">
liwords-ui/src/gameroom/board_panel.tsx:1792:        </Affix>
liwords-ui/src/gameroom/game_controls.tsx:9:import { Affix, App, Button, Dropdown, MenuProps, Popconfirm } from 'antd';
liwords-ui/src/gameroom/game_controls.tsx:146:      <Affix offsetTop={210} className="examiner-controls">
liwords-ui/src/gameroom/game_controls.tsx:197:      </Affix>

• current liwords master uses antd 5.13.2

• https://ant.design/changelog#5133 says antd 5.13.3 fixes it through fix: fix Affix placeholder height anomaly when chrome browser zoom is 80% ant-design/ant-design#46823

• updating to the current latest antd (5.15.0) did not fix it, the same issue is still observed