current dev environment does not fully benefit from TS types of definitions as Typescript is not installed in the dependencies.

• Currently typescript is technically used however the file extensions don't reflect that as files are still marked as JS and not TS.
• Additionally, files that contain JSX code should be marked as such with an extension of JSX or TSX.
• Type definition is inconsistent with types residing in the file, outside of the file and globally.
• build time type checking is not possible due to aforementioned lack of ts library in the project deps.

Upgrade SDK to v50 and restart development.

TL;DR: Need to upgrade SDK

Current SDK is outdated and incomplete, furthermore newest version of ExpoGo app required for development does not support this version of expo SDK. Additionally, although the app appears to successfully compile in development, the login appears to send corrupted or wrong request body thereby making it impossible to login, even if the credentials are correct. This was tested and compared against the crater app that's currently on the google app store and the data is being successful transmitted making me feel that something is either wrong with the source code, or the dependencies.

After attempted build multiple errors are visible in the output, without further reading the guess is that the dependencies are too old and as noted by expo-cli some APIs are likely to be deprecated.

With Expo SDK 47 a new version of expo router got introduced making file structure as navigation available aligning it with NextJS, React Framework I am confident and familiar with.

It has been available for at least 3 releases and appears to be here to stay so I believe it would be a good idea to integrate it in the new development.