feat(mat-datepicker): Adding events to next/prev buttons in the calendar

[honibis]

Feature Description

Having an event for month navigation through the next/previous buttons would greatly enhance the functionality. This would provide developers with a broader range of events to handle different interactions within the calendar component.

Upon reviewing the source code, I couldn't find any existing event that fires when users click the next/prev buttons to navigate between months. Having such an event would greatly benefit developers who rely on this functionality for various use cases beyond simple date selection.

Use Case

I rely on server-side data to set selectable dates and colors based on availability. Thus, it's essential for me to track when users navigate through months to retrieve availability data for the month they are currently viewing.