Shopkeepers lang-ru for 2.27.0

[AllFiRE0]

language-ru.yml

[AllFiRE0]

All keys are in accordance with the latest changes in 2.27.0
Also, in the previous Russian translation, the person who translated this file made some grammatical errors, most likely because it was just run through a regular translator. I fixed that so the plugin would be clear to every user from Russia.

I also fixed the syntax, corrected missing spaces between keys, and rearranged the key order to match the EN-default file - so that if the developer ever needs to add new keys, it'll be clear where to put them :3