New Russian translations (#7473)

* New Russian translations

* Import *.po translations

Co-authored-by: Nichole Haines <meeko28@users.noreply.github.com>
Co-authored-by: Kate Zhevelyuk <kate-lz@users.noreply.github.com>

* Generate the *.mo files

* polish the vignettes

Co-authored-by: Nichole Haines <meeko28@users.noreply.github.com>
Co-authored-by: Kate Zhevelyuk <kate-lz@users.noreply.github.com>

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Co-authored-by: Ivan K <krylov.r00t@gmail.com>
Co-authored-by: Nichole Haines <meeko28@users.noreply.github.com>
Co-authored-by: Kate Zhevelyuk <kate-lz@users.noreply.github.com>

Author: 4 people