title: Display woocommerce product dimensions in separate lines
body: <p>I found the way to display the dimensions in separate lines by copy <code>product-attributes.php</code> file to my child-theme and replace:</p>
  
  <pre><code>&lt;?php if ( $display_dimensions &amp;&amp; $product-&gt;has_dimensions() ) : ?&gt;
      &lt;tr&gt;
          &lt;th&gt;&lt;?php _e( 'Dimensions', 'woocommerce' ) ?&gt;&lt;/th&gt;
          &lt;td class="product_dimensions"&gt;&lt;?php echo esc_html( wc_format_dimensions( $product-&gt;get_dimensions( false ) ) ); ?&gt;&lt;/td&gt;
      &lt;/tr&gt;
  &lt;?php endif; ?&gt;
  </code></pre>
  
  <p>with:</p>
  
  <pre><code>&lt;?php if ( $display_dimensions &amp;&amp; $product-&gt;has_dimensions() ) : ?&gt;
      &lt;tr&gt;
          &lt;th&gt;Length&lt;/th&gt;
          &lt;td class="product_dimensions"&gt;&lt;?php echo $product-&gt;get_length() . get_option( 'woocommerce_dimension_unit' ); ?&gt;&lt;/td&gt;
      &lt;/tr&gt;
      &lt;tr&gt;
          &lt;th&gt;Width&lt;/th&gt;
          &lt;td class="product_dimensions"&gt;&lt;?php echo $product-&gt;get_width() . get_option( 'woocommerce_dimension_unit' ); ?&gt;&lt;/td&gt;
      &lt;/tr&gt;
      &lt;tr&gt;
          &lt;th&gt;Height&lt;/th&gt;
          &lt;td class="product_dimensions"&gt;&lt;?php echo $product-&gt;get_height() . get_option( 'woocommerce_dimension_unit' ); ?&gt;&lt;/td&gt;
      &lt;/tr&gt;
  &lt;?php endif; ?&gt;
  </code></pre>
  
  <p>The problem is that the products don't always have 3 dimensions...
  And then it look like this:</p>
  
  <p><a href="https://i.stack.imgur.com/Eu0b2.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Eu0b2.jpg" alt="Screen Shot"></a></p>
  
  <p>How can I display only the relevant rows?</p>