🇺🇦 Translation of documents into Ukrainian

[Andygol]

I am pleased to provide a translation of the documentation into Ukrainian. I look forward to its addition to the main documentation as soon as possible.

Please note that the translation contains translated materials from the /site folder, with the exception of the commands and blogs sections.

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the Apache 2.0 License.