add navigation to react code example

Example 1: install react native navigation

npm install @react-navigation/stack 
npm install @react-navigation/native --save

Example 2: react navigation react native

### ISNTALATION

npm install @react-navigation/native --save
yarn add @react-navigation/native

### core dependencies

expo install react-native-gesture-handler react-native-reanimated react-native-screens react-native-safe-area-context @react-native-community/masked-view

### stack navigation
yarn add @react-navigation/stack