title: Qt QFormLayout align label to left and value to the right
body: <p>I have the following QFormLayout with a short-value row and a long-value row</p>
  
  <pre><code>layout = QFormLayout()
  layout.setLabelAlignment(Qt.AlignLeft)
  layout.setFormAlignment(Qt.AlignLeft)
  
  layout.addRow(QLabel('Label short'), QLabel('2'))
  layout.addRow(QLabel('Label long'), QLabel('1234567890'))
  </code></pre>
  
  <p>What I get is:</p>
  
  <pre><code>Label short    2
  Label long     1234567890
  </code></pre>
  
  <p>What I would like is:</p>
  
  <pre><code>Label short             2
  Label long     1234567890
  </code></pre>
  
  <p>I will call the first column the label column and the second column the value column.</p>
  
  <ul>
  <li>Using <code>setFormAlignment()</code>, I can move the entire form to the left or to the right, but the value column alignment stays the same</li>
  <li>Using <code>setLabelAlignment()</code>, I can change the label column, but not the value column</li>
  <li>Using <code>setAlignment()</code> does not seem to have any effect</li>
  </ul>
  
  <p>Is there an endpoint for controlling the alignment on the second column?</p>