Safenet landing page (#498)

* feat: transparent header

* feat: Metadata

* feat: Hero section

* feat: Chain abstraction

* chore: update metatags

* styles: xl viewports

* feat: add navigation menu button

* feat: Roadmap section

* feat: add Roadmap tags

* feat: Architecture lg viewport

* feat: Architecture section xl viewport

* feat: Architecture section xs and sm viewport

* fix: replace faulty import

* feat: CrossChain section tags

* style: give right background color to tags

* feat: Values section

* styles: Values section images

* feat: Values gradient stats

* feat: Waitlist section

* feat: repalce Header logo

* feat: changes in Hero section

* feat: Architecture md viewports

* feat: Architecture mobile viewports

* chore: add links

* chore: refactor duplicated text

* style: improve readability on the navigation header buttons

* styles: extend Values block lines

* styles: harmonize stretched text in CrossChain blocks

* chore: mp4 fallback video

* styles: fix margins

* chore: add meta image

* chore: replace hero video

* feat: add missing links

* chore: favicons

* chore: update mp4

* fix: Roadmap tags

* styles: text background

* style: add Waitlist hook in mobile viewport

* fix: PR feedback

* fix: lint

* fix: typo

* style: step numbers background in mobile viewport

* style: gradient numbers

* chore: update favicons

* styles: step gradient highlight