Fix ignored timezone in web UI

[matjack1]

In the UI, the device time wasn't using the timezone set in the configuration, but always the UTC date time.

[omersiar]

I remember this is because global summer time and politics around it changes all the time. Keeping time as utc internally and adjusting it according the changes makes more sense.

[matjack1]

I agree with you, it's just a different way to show in that particular part of the UI, I think it's useful to the user setting that option, to understand if the timezone is correct.

Since we are not handling summer time, it's more difficult to understand if you've picked the right timezone

[omersiar]

Thanks ☺️