They switched from spellchecker to typo-js in https://github.com/signalapp/Signal-Desktop/commit/9e9401693c so changes in commit b7e6be3f are no longer required.
They switched from spellchecker to typo-js in https://github.com/signalapp/Signal-Desktop/commit/9e9401693c so changes in commit b7e6be3f are no longer required.