title: Spacing In VLayout
body: <p>I am working inside a Tabpane and I want to have 2 buttons on the bottom-right of the tap-pane, so I thought I just add a LayoutSpacer, but this resulted in</p>
  
  <p><img src="https://i.stack.imgur.com/0wOc9.png" alt="enter image description here"></p>
  
  <p>but I wanted it to look like</p>
  
  <p><img src="https://i.stack.imgur.com/V5k3Z.png" alt="enter image description here"></p>
  
  <p>How can I make my Layoutspacer "bigger"?</p>