showDoubleView and showNeighboringMonth=false will still cause the previous/next month's dates to be shown

[Zandor300]

Before you start - checklist

• I followed instructions in documentation written for my React-Calendar version
• I have checked if this bug is not already reported

Description

The following example will still cause the next and previous month's dates to be shown.

<Calendar
    showDoubleView
    showNeighboringMonth={ false }
/>

Steps to reproduce

<Calendar
    showDoubleView
    showNeighboringMonth={ false }
/>

Expected behavior

Previous and next month's dates aren't shown in the container for the current month, like how is the case for the not-double view:

Actual behavior

Using double view will cause certain overlapping week's dates to be shown twice as can be seen in the screenshot above.

Additional information

No response

Environment

• Browser (if applicable): Chrome 127.0.6533.99
• React-Calendar version: 5.0.0
• React version: 18.2.0