bug(material/datepicker): There is no way to deselect the selected date(s) while a calendar is open

### Is this a regression?

- [ ] Yes, this behavior used to work in the previous version

### The previous version in which this bug was not present was

_No response_

### Description

I have a reset button in the date range picker, but when I try to reset the selected dates using the reset button, it resets the models but not the selection in the date range picker widget.


### Reproduction

StackBlitz link: https://stackblitz.com/edit/4wfp1v-mbnz3s?file=src%2Fexample%2Fdate-range-picker-overview-example.html

Steps to reproduce:
1. Open the date range picker widget.
2. Select a date range.
3. Click the reset button.
4. Observe that while the underlying models are reset, the date selection in the date range picker widget remains unchanged.

### Expected Behavior

I was expecting the date range picker widget to completely clear the selected dates and reset to its default state when the reset button is clicked, along with resetting the underlying models.

### Actual Behavior

The actual behavior is that when the reset button is clicked, the underlying models are reset, but the selected dates in the date range picker widget remain highlighted and do not clear.

### Environment

- Angular: ^19.0.0-next.2
- CDK/Material: ^19.0.0-next.2
- Browser(s): Chrome
- Operating System (e.g. Windows, macOS, Ubuntu): Windows and Ubuntu

Inizia dalla riproduzione StackBlitz collegata, in particolare da src/example/date-range-picker-overview-example.html, e riproduci il flusso di reset nel date-range picker. Traccia il comportamento del widget dopo che i modelli sono stati cancellati e identifica i test pertinenti di Material date-range picker; il lavoro è completato quando il pulsante di reset cancella sia i modelli sia la selezione della data evidenziata.

Scritto dal modello di indicizzazione a partire dal testo della issue.