Timezone and ISO localtime at published location in Recorder API about frontend

[linusg]

Happy to just add this to the popup, but it might need a new layout if it gets too crowded 😄
Gonna update my recorder to ensure I have this data and look into exposing it later today.

[linusg]

A bit of a lazy solution, but I chose to glue both values together to form a valid ISO 8601 string that has both an offset and the time zone name:

Definitely can be improved by someone with UI skills, but it does show the data now :)

[linusg]

And a screenshot for matching viewer and device time zones:

[jpmens]

Nice, thanks!