Investigate typescript dependency

[cjcenizal]

#89 added a dev-dependency on TS, but this should be handled by create-react-app. Prior to this change, running npm i installed TS in my node_modules directory and I wonder why this wasn't the case for @irfanazam1.

I did some Googling and found https://stackoverflow.com/questions/71885069/module-not-found-error-cant-resolve-the-typescript-file-when-adding-typescrip, which looks like it might be related, but requires further investigation.