Website broken for mobile

[asn-d6]

The navbar is broken for mobile plus a bunch of other features are not working as intended. We will need some frontend help for that.

Other things that could be improved:

• Home page vertical spacing looks off
• Heading sizes are not really nice in primitives/properties -- they kinda look the same
• Can we improve the usability of <details> "Click for details"?
• Can we improve the readability of primitives/properties page so that it doesn't look like a sea of text?
• Can the tree look nicer? I've tried a bunch of d3js recipes but they did not work