Nice job will try to look at this weekend, but seems like a very meticolous PR

Thanks! I tried my best 😅

I'm writing you some more notes because when I did the PR(s)
it was late and I was fighting with jitpack ... 😠

At first I made a PR with HtmlUnit 4.x But after a second review
I realized that it doesn't support many html/css "stuff",
so I went back to 1.9.latest, which seems to work quite well
although it's not perfect because it doesn't support the "latest" css techniques,
"flex" for example...

JPG rendering is always so-so in java, at the moment the quality seems decent,
I should try with TwelveMonkeys to see if it improves, but in my opinion
it's not worth putting it as a dependency because
if you want you can always add it to the project as you like
(eg. system library, Tomcat lib, webapp lib, ... )
and it's transparent for the developer ...

Last but not least, sorry for the changes to the "imports" but my ide
is configured as required for some Jakarta EE Projects I contribute to
and they are very serious about it... 😅