[Bug?] Long mathjax render gets cropped

[tecosaur]

@tamuratak The below relates to the following LaTeX code,

\begin{align*}
	\Lap[t H(t-1)] + \Lap[(3-t)H(t-2)] &= \Lap[\underbrace{((t-1)+1)}_{f(t)=t+1}H(t-1)] + \Lap[\underbrace{(1-(t-2))}_{f(t)=1-t}H(t-2)] \\
	&= e^{-s}\left( \frac{1}{s^2} = \frac{1}{s} \right) + e^{-2s}\left( \frac{1}{s} - \frac{1}{s^2} \right)
\end{align*}

For this aligns the preview produced is as below

When I expect something more like this,

This is from the mathjax online demo. With #875 fixed I would get the following,

Sorry for the issue-spam.

[tamuratak]

Related to microsoft/vscode/issues/14165. To work aroud this problem, please set latex-workshop.hoverPreview.scale to less than 1.0. I have set it to 0.9.