Updated language bundle.

public/intl/messages/ru-RU.json

@@ -176,7 +176,7 @@
   "label.language": [
     {
       "type": 0,
-      "value": "Language"
+      "value": "Язык"
     }
   ],
   "label.last-days": [
@@ -334,7 +334,7 @@
   "label.theme": [
     {
       "type": 0,
-      "value": "Theme"
+      "value": "Тема"
     }
   ],
   "label.this-month": [