Fix Jest mocks for Dimensions module
Fix Jest mocks for Dimensions module

Summary:
Jest mock for Dimensions.get("screen") is missing. Tests fail with error message:

    Invariant Violation: No dimension set for key screen

Run test with usage of Dimensions.get("screen")

[GENERAL] [BUGFIX] [jest/setup.js] - Fix Jest mocks for Dimensions module
Closes https://github.com/facebook/react-native/pull/17017

Differential Revision: D6471719

Pulled By: TheSavior

fbshipit-source-id: de27b2819d088fefe20dfca94ab5672fdec5f0e1

hoangpham95/react-native,pandiaraj44/react-native,janicduplessis/react-native,exponent/react-native,dikaiosune/react-native,janicduplessis/react-native,Bhullnatik/react-native,hoangpham95/react-native,hoastoolshop/react-native,hoangpham95/react-native,facebook/react-native,exponentjs/react-native,javache/react-native,facebook/react-native,arthuralee/react-native,pandiaraj44/react-native,ptmt/react-native-macos,rickbeerendonk/react-native,hammerandchisel/react-native,exponent/react-native,exponent/react-native,facebook/react-native,hammerandchisel/react-native,hammerandchisel/react-native,hoastoolshop/react-native,ptmt/react-native-macos,javache/react-native,jevakallio/react-native,javache/react-native,janicduplessis/react-native,facebook/react-native,hoangpham95/react-native,ptmt/react-native-macos,janicduplessis/react-native,myntra/react-native,exponentjs/react-native,javache/react-native,hammerandchisel/react-native,dikaiosune/react-native,myntra/react-native,dikaiosune/react-native,facebook/react-native,arthuralee/react-native,rickbeerendonk/react-native,jevakallio/react-native,Bhullnatik/react-native,hoastoolshop/react-native,Bhullnatik/react-native,jevakallio/react-native,exponent/react-native,rickbeerendonk/react-native,hoastoolshop/react-native,myntra/react-native,hoastoolshop/react-native,exponentjs/react-native,myntra/react-native,Bhullnatik/react-native,rickbeerendonk/react-native,hammerandchisel/react-native,myntra/react-native,myntra/react-native,rickbeerendonk/react-native,pandiaraj44/react-native,rickbeerendonk/react-native,ptmt/react-native-macos,Bhullnatik/react-native,hoangpham95/react-native,exponentjs/react-native,javache/react-native,Bhullnatik/react-native,myntra/react-native,exponent/react-native,exponentjs/react-native,jevakallio/react-native,facebook/react-native,javache/react-native,rickbeerendonk/react-native,pandiaraj44/react-native,hoastoolshop/react-native,jevakallio/react-native,facebook/react-native,dikaiosune/react-native,rickbeerendonk/react-native,janicduplessis/react-native,hoangpham95/react-native,janicduplessis/react-native,pandiaraj44/react-native,janicduplessis/react-native,pandiaraj44/react-native,arthuralee/react-native,myntra/react-native,exponentjs/react-native,ptmt/react-native-macos,dikaiosune/react-native,jevakallio/react-native,rickbeerendonk/react-native,facebook/react-native,hammerandchisel/react-native,dikaiosune/react-native,Bhullnatik/react-native,exponent/react-native,javache/react-native,jevakallio/react-native,exponent/react-native,hoangpham95/react-native,ptmt/react-native-macos,myntra/react-native,hoangpham95/react-native,janicduplessis/react-native,hammerandchisel/react-native,dikaiosune/react-native,hoastoolshop/react-native,facebook/react-native,dikaiosune/react-native,jevakallio/react-native,ptmt/react-native-macos,Bhullnatik/react-native,javache/react-native,exponentjs/react-native,arthuralee/react-native,pandiaraj44/react-native,arthuralee/react-native,hammerandchisel/react-native,jevakallio/react-native,exponent/react-native,ptmt/react-native-macos,hoastoolshop/react-native,javache/react-native,exponentjs/react-native,pandiaraj44/react-native