[HOLD for payment 2022-12-15] [N7 Account Settings] Create Timezone pages

[Beamanator]

Tracking issue: https://github.com/Expensify/Expensify/issues/182122

Detailed section of doc: https://docs.google.com/document/d/17akqrbC-w8FqEoDLvcLmrX6iw4uaVrT_xlwAl-IhEzE/edit#heading=h.734gbh8x59o1

Note: This can only be implemented after UpdateAutomaticTimezone and UpdateSelectedTimezone commands have been created (see https://github.com/Expensify/Expensify/issues/238724)

[Beamanator]

On hold for WhatsApp Quality

[Beamanator]

Still on hold for now, might pick this up next week as discussions from here (#11795) are indicating this could be useful to implement sooner rather than later