Docs: height attribute not honored

[BsAtHome]

While browsing the new docs (really nice) it occurred to me that some images are displayed in a different height than specified in the sources.
Noticed when converting PNG into SVG (a chore when I have to take my mind off of things). The following have been converted to SVG. They are from docs/src/motion/5-axis-kinematics.adoc images 1 and 4 (docs/src/motion/5-axis-figures/Figure-[14].svg).

The images are set to height=400 in the adoc:

image::5-axis-figures/Figure-1.png[align="center",height=400]
...
image::5-axis-figures/Figure-4.png[align="center",height=400]

But looking at the result at https://linuxcnc.org/docs/devel/html/en/motion/5-axis-kinematics.html makes them both a lot larger. When the SVGs are inserted, then they only take the SVG's height and don't scale to the height attribute. So both PNG and SVG scale wrongly. What needs to be fixed to do this "right"?

[hansu]

For the PDF docs, this part should be extended by 'height':

linuxcnc/docs/src/extensions/image_resolver.rb

Lines 331 to 337 in 057ecf6

	def apply_default_width(node)
	return if node.context == :inline_image
	return if node.attr('pdfwidth')
	return if node.attr('scaledwidth')
	return if node.attr('width')
	node.set_attr('pdfwidth', '75%')
	end

But for the HTML I have no idea, it seems that the height attribute is just dropped.

[grandixximo]

@BsAtHome Did some image sizing revisions in #4202, PDFs look better, for the HTML the one you are referencing here now renders proper, and other things seems mostly unchanged on a quick loo over.