Add missing Russian translation

[lotarbo]

No description provided.

[request-info]

Hi there!

Could you please provide us with more info about this? Looks like you skipped the title/body.

Thank you!

--
Justin Case
The Backpack Robot

[scrutinizer-notifier]

The inspection completed: No new issues

[welcome]

WHOOP-WHOOP! Congrats, your first PR on this repo has officialy been merged.

You should also receive an email inviting you to the Community Members team. That's where we, commited community members, debate new features and decide what's in the Backpack roadmap. Feel free to ignore the invitation if you're not interested :-)

If you want to help out the community in other ways, you can:

• give your opinion on other Github Issues & PRs;
• chat with others in the Gitter Chatroom (usually for quick help: How do I do X);
• answer Backpack questions on Stackoverflow; you get points, people get help; you can subscribe to the backpack-for-laravel tag by adding a new filter; that will send you emails when new questions come up with our tag;

Again. Thank you for the PR. You are a wonderful person. Keep 'em coming :-)
Cheers!

--
Justin Case
The Backpack Robot

P.S. Help in the Backpack community is rewarded with free Backpack commercial licenses. It's the least we can do. If you feel you've helped the community with PRs, help & other stuff, please apply for free licenses and mention this PR. You scratch my back, I scratch your back. Thank you!

[tabacitu]

Thank you @lotarbo ! Merged, will be tagged tomorrow with a few more non-breaking changes.