Re-export config-plugins from expo package and update docs (#18855)

Created expo-system-ui module (#14952)

* Created expo-system-ui

* Added iOS support

* Delete withNavigationBar-test.ts

* Update package.json

* Update package.json

* Remove reflection

Created expo-system-ui module (#14952)

* Created expo-system-ui

* Added iOS support

* Delete withNavigationBar-test.ts

* Update package.json

* Update package.json

* Remove reflection code

* Added docs

* Create system-ui.md

* Added ios plugin

* Added e2e tests

* Drop setUserInterfaceStyleAsync method

* Convert to new format

* android lint

* Update SystemUIScreen.tsx

* updated docs and naming

* Remove unused android code

* Update apps/native-component-list/src/screens/SystemUIScreen.tsx

* Normalize web color

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