Add legal and project infos onto website

[sasha-astiadi]

• Add Privacy Policy page
  follow: https://ourworld.tf/legal/privacypolicy/ . replace Ourworld or Ourworld Holding with ThreeFold DMCC for now. and also the addresses and emails to info@threefold.io

• Add Impressum page- kubecloud is under threefold dmcc. copy below:
  https://dev.threefold.io/legal/impressum/

• Add Terms & Conditions page
  follow: https://ourworld.tf/legal/termsconditions/ replace Ourworld or Ourworld Holding with ThreeFold DMCC for now. info@threefold.io

• Make branding guidelines / mediakit
  follow https://ourworld.tf/mediakit/

• add matomo