RU: Update SOL console page alert message

Add russian translations that were missed in a commit
1d9257e5a355bbc0540b70ab2b2d9a17dea6d986
("Update SOL console page alert message").

Signed-off-by: Konstantin Aladyshev <aladyshev22@gmail.com>
Change-Id: I71219d8d9ac4cc7cd86ef8911863a216f2bbbee9
diff --git a/src/locales/ru-RU.json b/src/locales/ru-RU.json
index 00b540a..62eb535 100644
--- a/src/locales/ru-RU.json
+++ b/src/locales/ru-RU.json
@@ -811,6 +811,9 @@
     }
   },
   "pageSerialOverLan": {
+    "alert": {
+      "disconnectedAlertMessage" : "Система должна быть включена для соединения"
+    },
     "connected": "Подключено",
     "disconnected": "Отключено",
     "openNewTab": "Открыть в новом окне",