Shows single month even when numberOfMonths is 2

[pdhruv93]

When the mode="range" and numberOfMonths="2", shows only one month when the range is within the last month.
If range includes more than 1month, works fine.

To reproduce

<DayPicker
      endMonth={new Date()}
      hidden={[{ after: new Date() }]}
      min={2}
      numberOfMonths={2}
      pagedNavigation={false}
      mode="range"
      selected={dates}
      onSelect={setDates}
      month={monthFocused}
      onMonthChange={(start) => setMonthFocused(start)}
    />

Actual Behavior

Shows only current month

Expected Behavior

Should show current month and previous month, since numberOfMonths is 2

Screenshots

https://codesandbox.io/p/sandbox/3j5wmw

[rodgobbi]

@gpbl
This happens because the first displayed month is fewer months away from the endMonth than the numberOfMonths value.
We could compute the first displayed month, trying always to display the numberOfMonths.
We already compute the displayed month in getInitialMonth, we can extend the logic and use the numberOfMonths to compute the final date.

What do you think?

[gpbl]

@rodgobbi #2784 should fix this.