Add React Native to apps and mimic auth functionality from Platform

[vygandas]

What

Why

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Acceptance Criteria

• There's a React Native app in apps/ called mobile
• Expo is used (so we could utilise a whole additional tooling layer in development and CI / CD)
• Unit tests are being run for every commit to PR (part of CI checks)
• e2e tests are being run for every commit to PR (part of CI checks)
• The mobile app is being built on every commit to PR (part of CI checks)
• Sign-up, sign-in and forgot password functionality is implemented and works the same as on Platform (apps/platform)
• There are protected routes implemented, and when the user signs in, the user name is displayed
• User can log out
• Access token refresh is implemented the same as in Sign up + sign in + forgot password functionality #74
• Authentification implementation libs/impl is reused, and no custom services are implemented that do the same thing as on Platform; please refer to Sign up + sign in + forgot password functionality #74 for authentication acceptance criteria to be sure.
• It's documented on how to run and build mobile applications, mentioning what developers might need to make it work