Made the faces I care about not need to continuously re-find the timezone

movement/watch_faces/complication/sunrise_sunset_face.h

@@ -52,6 +52,7 @@ typedef struct {
     uint8_t rise_index;
     uint8_t active_digit;
     bool location_changed;
+    int16_t tz;
     watch_date_time rise_set_expires;
     sunrise_sunset_lat_lon_settings_t working_latitude;
     sunrise_sunset_lat_lon_settings_t working_longitude;