When showing preview in the Web App the preview is not clickable

We get reports from users who cannot get clicking an optional signature to work in the Xink Web Add-in

It turns out the issue is that when "Show preview" is selected, the preview of the mail signature is not clickable. You have to click the name of the signature above the preview to select the signature.

It would be great if the whole area was clickable when selecting the signature, including the preview.
The screenshot below illustrates how it is today.