Improve and update ru.xml
Improve and update ru.xml

Improve translation, correct minor spelling errors and flaws.
Jhovany200/Dism-Multi-language,verdy-p/Dism-Multi-language,Chuyu-Team/Dism-Multi-language,Jhovany200/Dism-Multi-language,Chuyu-Team/Dism-Multi-language,Chuyu-Team/Dism-Multi-language,suwakowww/Dism-Multi-language,verdy-p/Dism-Multi-language,verdy-p/Dism-Multi-language,Chuyu-Team/Dism-Multi-language,suwakowww/Dism-Multi-language,verdy-p/Dism-Multi-language,verdy-p/Dism-Multi-language,suwakowww/Dism-Multi-language,Jhovany200/Dism-Multi-language,Chuyu-Team/Dism-Multi-language,Jhovany200/Dism-Multi-language,suwakowww/Dism-Multi-language,suwakowww/Dism-Multi-language,Jhovany200/Dism-Multi-language