To be implemented

[ct-chu]

• hyperlink to Ho Koon web pages in "about" page
• "share" button on top bar
• fix "CORS Missing Allow Origin" for hokoon.edu.hk/astroInfo/_next/static/media/6cd62e355a8d6f23-s.p.otf when accessing with "www." prefix
• "Loading..." text when images are being loaded?