Fixing a repeated typo in comments "Default to" => "Defaults to".
Fixing a repeated typo in comments "Default to" => "Defaults to".

PiperOrigin-RevId: 304618132

material-components/material-components-ios,material-components/material-components-ios,material-components/material-components-ios,material-components/material-components-ios,material-components/material-components-ios