todo:

• Allow the user to choose a region of the world (Asia, Europe, Oceania, etc)
• Once a region is chosen, allow the user to select a country within that region (e.g. if the user chooses Europe, they can then choose France, Germany and others, but not New Zealand)
• Once the user chooses a country, display the following information about that country:
  • As a page title, the country’s common name and flag, e.g. Germany 🇩🇪
  • Its official name, e.g. Federal Republic of Germany
  • Its native name(s), e.g. Deutschland
  • Its name(s) in Japanese, if available, e.g. ドイツ or ドイツ連邦共和国
  • Its flag as an image
  • Its population density (population / area)