fix(i18n): improved Russian translation

[goldjee]

SUMMARY

Recreated my previous PR #28371 because some PRs for other languages were approved and I wasn't able to resolve conflicts by myself. This new version only touches russian lang files and common messages.pot.

This is a pretty big change to Russian translation.

• Extracted new strings and updated language files, as described in the documentation.
• Normalized usage of dots at the end of sentences. The rule is simple: if given label contains only one sentence, it should not be ended with a dot. On the contrary, labels comprised of several sentences should be ended with a dot.
• Normalized usage of "е" and "ё" symbols. As there was no "ё" pretty much everywhere and people are used to omit dots above this symbol, I have changed "ё" to "е" everywhere this symbol occurs.
• Fixed typos and written language style issues.
• Renamed chart to "Диаграмма" (previously it was called "График"). The reason is that "график" is a word that means "line plot". As most of visuals types are not plots, it is much more correct to call them "диаграмма" (diagram, chart) instead.
• Normalized naming of various chart types.
• Used English names for things where it is appropriate. For instance, "Superset" should not be translated to "Суперсет", as it is a proper noun.
• Added quite a bunch of missing strings, corrected and confirmed some drafts.
• Shortened some strings for the sake of brevity and to make them fit into tight spaces.

Of course, there is still a lot of work to do, but I have managed to cover the most frequently viewed UI elements and pages. Hope the team and end users will find this version alright.

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

TESTING INSTRUCTIONS

ADDITIONAL INFORMATION

• [ ] Has associated issue:
• [ ] Required feature flags:
• [ ] Changes UI
• [ ] Includes DB Migration (follow approval process in SIP-59)
  • [ ] Migration is atomic, supports rollback & is backwards-compatible
  • [ ] Confirm DB migration upgrade and downgrade tested
  • [ ] Runtime estimates and downtime expectations provided
• [ ] Introduces new feature or API
• [ ] Removes existing feature or API