Update translation for support portal in Russian

We need to have the support portal updated, as lots of content has been added.

At the moment we have 241 strings untranslated (4213 words) and we also need to review other 367 strings translated (5829 words). It is 72.71% reviewed and 89.18% translated

To translate: https://www.transifex.com/otf/tor-project-support-community-portal/translate/#ru/support-portal/331150377?q=translated%3Ano

To preview: https://review.torproject.net/tpo/web/support/l10n/ru/