Re-enable Android Auto

[th0mcat]

Completes #4247.

Re-enables Android Auto app component in AndroidManifest.xml

Pull Request Checklist

• Changes has been tested on an Android device or Android emulator with API 21
• UI change has been tested on both light and dark themes
• Accessibility has been taken into account. See https://github.com/vector-im/element-android/blob/develop/CONTRIBUTING.md#accessibility
• Pull request is based on the develop branch
• Pull request includes a new file under ./changelog.d. See https://github.com/vector-im/element-android/blob/develop/CONTRIBUTING.md#changelog
• Pull request includes screenshots or videos if containing UI changes
• Pull request includes a sign off
• You've made a self review of your PR
• If you have modified the screen flow, or added new screens to the application, you have updated the test UiAllScreensSanityTest.allScreensTest()

[ouchadam]

thanks!

[bmarty]

Thanks, I need a sign off to be able to merge this PR. You can just add a comment to this PR as per https://matrix-org.github.io/synapse/latest/development/contributing_guide.html#sign-off

[th0mcat]

Signed-off-by: Thom Cleary [email protected]