[Full Changelog](https://github.com/matrix-org/matrix-js-sdk/compare/v9.4.0-rc.2...v9.4.0) * Revert `postinstall` script change, causes issues for other layers
[Full Changelog](https://github.com/matrix-org/matrix-js-sdk/compare/v9.4.0-rc.2...v9.4.0) * Revert `postinstall` script change, causes issues for other layers