Desktop category name not translatable

[cappp]

Everything is located in pt-BR, except this title (Dock Size):

There is no key for the title "Dock Size" in all translations, including the English one.

[tunix]

Looks like Desktop is not translatable as well. It should be "Masaüstü" in Turkish.

[jacobgkau]

The Dock Size header issue was fixed by #48. I've renamed this issue to reflect the remaining unstranslatable Desktop string.