Enable render dynamic content inside Datepicker cell

[eulier1]

Is your feature request related to a problem? Please describe.

Be able to render content inside a date cell

Describe the solution you'd like

Allow render content inside of date picker (for uses cases like this)

Describe alternatives you've considered

slots, but for this might require to create an object to map content to days in a month, as a first iteration

Define an array of arrays that contain content per day in a month.