fix(Calendar): prevent auto-refocus on single selection mode (#8302)

[Coderxrohan]

Fixes #8302

Cause: In single selection mode, when a date is selected, the overlay closes but the input field is immediately refocused with reFocusInputField(). This prevents reopening the calendar by clicking the input again.

Implementation: Updated onDateSelect to conditionally skip the refocus when selectionMode === 'single'.

- reFocusInputField();
+ if (props.selectionMode !== 'single') {
+     reFocusInputField();
+ }

Result:

✅ Single selection mode → panel closes without auto-refocus, allowing the user to reopen the calendar by clicking the input.

✅ Range / multiple selection modes → auto-refocus remains, preserving accessibility.

@Coderxrohan

[melloware]

you might have to run npm run format

[Coderxrohan]

Can you confirm once @melloware
Passed all checks and working well.