fix: missing update in useWindowDimensions

[kirillzyusko]

📜 Description

Fixed broken layout of KeyboardAvoidingView when KeyboardAvoidingView mounted on app start.

💡 Motivation and Context

The problem was in fact, that event arrived after useState initalization, but before adding a new listener. So we had a missing event and as a result screenHeight was 0.

To fix this I applied a very similar logic to what useWindowDimensions hook does from react-native. When useEffect callback gets executed we update state with initialDimensions. The value of initialDimensions will be always actual, because it's located outside of the hook.

📢 Changelog

JS

• force update state inside useEffect with initialDimensions;

🤔 How Has This Been Tested?

Tested manually on Medium_Phone_API_35.

📝 Checklist

• CI successfully passed
• I added new mocks and corresponding unit-tests if library API was changed

[github-actions]

📊 Package size report

Current size	Target Size	Difference
161221 bytes	160875 bytes	346 bytes 📈