Add Russian l10n to the desktop file

Fix menu category

--- ./qtpass.desktop

+++ ./qtpass.desktop

@@ -13,7 +13,7 @@ GenericName=Password Manager

 #GenericName[hu_HU]=

 GenericName[nl_NL]=Wachtwoord Beheer

 #GenericName[pl_PL]=

-#GenericName[ru_RU]=

+GenericName[ru_RU]=Менеджер паролей

 #GenericName[sv_SE]=

 #GenericName[zh_CN]=

 Comment=GUI for the standard unix password store

@@ -27,11 +27,11 @@ Comment=GUI for the standard unix password store

 #Comment[hu_HU]=

 Comment[nl_NL]=GUI voor de standaard unix wachtwoord opslag

 #Comment[pl_PL]=

-#Comment[ru_RU]=

+Comment[ru_RU]=Графический клиент менеджера паролей pass

 #Comment[sv_SE]=

 #Comment[zh_CH]=

 Exec=qtpass

 Icon=qtpass-icon

 Terminal=false

-Categories=Security;Utility;

+Categories=Qt;System;Security;

 Keywords=Password;Manager;QT;