This PR implements a whole lot of fixes and updates to the website. It
adds a release-notes page, terms and conditions page, privacy policy
page, while fixing HomeStepper, ProductStepper, and WhyTwentyStepper. 3D
models still need to be styled and their sizes need to be fixed.
This PR contains Menu, Hero, TrustedBy, Problem, ThreeCards and Footer
sections of the new website.
Most components in there match the Figma designs, except for two things.
- Zoom levels on 3D illustrations from Endless Tools.
- Menu needs to have the same color as Hero - it's not happening at the
moment since Menu is in the layout, not nested inside pages or Hero.
Images are placeholders (same as Figma).