Popup arrow is not placed properly when the calendar is wider than the input field

[Tsuyoshi84]

Describe the bug
The popup arrow pointing to the calendar's input field is not placed properly when the calendar is wider than the input field.
This issue tends to occur when enabling multi-calendars since it widens the calendar popup.

To Reproduce
Steps to reproduce the behavior:

1. Go to https://stackblitz.com/edit/vitejs-vite-xq8lnk?file=src%2FApp.vue
2. Click on the input field
3. You can see that the arrow is not pointing to the input field exactly

Expected behavior
Ideally, the arrow should be placed under the center of the input field.

Screenshots

Desktop & mobile (please complete the following information):

• Browser Chrome, Edge
• Library version 8.3.2

[allusernamestakenexceptthis]

Just to add. When you have two fields next to each other's, it may cause confusion or at best looks bad UX-wise.