website: add translation of missing pages (3)

[vladlen]

Summary

Added new pages existing in EN version of website.
ru/status/_index.adoc
ru/status/categories-desc.adoc
ru/status/20*.adoc
ru/search/opensearch/_index.adoc
ru/events/_index.adoc
Fixed ru/news pages to point correctly to new pages.

Test Plan

cd website
DOC_LANG="en ru" bmake run