libksysguard - en to ar translation catalogue (3 entries)

[ctx: @title %1 is a number]
en: Voltage %1
ar: الجهد كهربائي %1

[ctx: @title %1 is a number]
en: Fan %1
ar: المروحة %1

[ctx: @title %1 is a number]
en: Temperature %1
ar: الحرارة %1
