marker-tooltip slot returns single object instead of array

[xSimekj1]

Describe the bug

When customizing tooltips via #marker-tooltip slot, there are two props available: tooltip and day. The issue is that tooltip is not an array as expected but is provided one by one. So, instead of Tooltip[], we get just Tooltip, causing TypeScript to report errors when trying to work with the data.
This issue does not occur in the #marker slot.

Steps to reproduce the behavior:

1. Recreate https://vue3datepicker.com/slots/content/#marker-tooltip example
2. Try to use #marker-tooltip slot with tooltip data and check tooltip isArray
3. Alternatively, check the StackBlitz example: https://stackblitz.com/edit/vuepic-vue-datepicker-mwn8fd?file=src%2Fcomponents%2FPlayground.vue

Expected behavior

Either the return type of slot should be just a single Tooltip object or it should return an array Tooltip[] as TypeScript expects.
According to docs it should be also array tooltip - The tooltip data provided in the array

Screenshots

Typescript expects array of Tooltips

Single Tooltip returned instead