Clients - Mobile - Add better rules for RN eslint to prevent raw text in code

[lakardion]

What this does

Add a rule that errors whenever the linter finds strings not wrapped in <Text> component which causes crashes on runtime.

Note that here eslint-plugin-react-native was already installed but in the project I was working on this wasn't installed and it is a requirement for this lint rule to work:

npm install -D eslint-plugin-react-native

Checklist

• [ ] Todo 1
• [ ] Todo 2
• [ ] Todo 3

How to test

Add user steps to achieve desired functionality for this feature.