add Arabic translation

[AhmadKazimi]

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[google-cla[bot]]

Thanks for your pull request! It looks like this may be your first contribution to a Google open source project. Before we can look at your pull request, you'll need to sign a Contributor License Agreement (CLA).

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[riggaroo]

Hi, Thanks for your contribution, however Sunflower is going to be archived in favour of maintaining a smaller set of up-to-date set of compose-samples, that can be found here: https://github.com/android/compose-samples, as well as snippets that can be found here: https://github.com/android/snippets.

Please feel free to keep your fork up-to-date for your learning, but this repository will be archived shortly.