title: react ag-grid auto size columns and grid width
body: <p>I am using ag-grid, I want the columns width to be dynamic according to the grid content,
  I do it by using:</p>
  <pre><code>const onGridReady = params =&gt; {
      params.columnApi.autoSizeAllColumns();
  };
  </code></pre>
  <p>but the width of the grid is alays fixed, I have a space in the side of the grid.
  (I can't also send width to the grid, because I can't know what will be the size of the content)
  what I need is something how to combine autoSizeAllColumns and sizeColumnsToFit functions.</p>