en to en_GB translation catalogue (3 entries)

[ctx: KScreen::GetConfigOperationPrivate]
en: Failed to deserialize backend response
en_GB: Failed to deserialise backend response

[ctx: KScreen::SetConfigOperationPrivate]
en: Failed to deserialize backend response
en_GB: Failed to deserialise backend response

[ctx: KScreen::SetConfigOperationPrivate]
en: Failed to serialize request
en_GB: Failed to serialise request
