kstatusnotifieritem6_qt - en to es translation catalogue (3 entries)

[ctx: KStatusNotifierItem|@action:inmenu]
en: &Minimize
es: &Minimizar

[ctx: KStatusNotifierItem|@action:inmenu]
en: Quit
es: Salir

[ctx: KStatusNotifierItem|@action:inmenu]
en: &Restore
es: &Restaurar
