title: how to set default v-calendar visible months
body: <p>I'm working with V-calendar to select date ranges</p>
  
  <p>The default v-calendar view shows me the current month and the next month
  (today is febury), like:</p>
  
  <p><a href="https://i.stack.imgur.com/UoAaB.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/UoAaB.png" alt="enter image description here"></a></p>
  
  <p>However I would like to set default view from current and past month, cause the default range is the last 30 days
  , like:</p>
  
  <p><a href="https://i.stack.imgur.com/UKgkV.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/UKgkV.png" alt="enter image description here"></a></p>
  
  <p>How can I set this in my v-calendar?</p>