Minor fix for desktop file

[AlexL]

Hello, Liviu,

If Name=GenericName, then KDE does not show GenericName, so I want to change:
from
GenericName[ru]=Генератор расписаний
to
GenericName[ru]=Генератор расписаний для учебных заведений

[Liviu Lalescu]

Thank you! Please confirm that the attached file is what you need.

[AlexL]

Yes, it's OK