Mobile: Source Academy crashes when browser window resizes

[martin-henz]

The error (MacOS Tahoe 26.3.1, Chrome 146):

Unexpected Application Error!
i.default.findDOMNode is not a function
TypeError: i.default.findDOMNode is not a function
    at v.findDOMNode (https://sourceacademy.org/static/js/async/37854.60c27694.js:2:10472)
    at v.componentWillUnmount (https://sourceacademy.org/static/js/async/37854.60c27694.js:2:10031)
    at o4 (https://sourceacademy.org/static/js/lib-react.f8e37755.js:2:89877)