Update icon component page

[8845musign]

Change

• Icon Component released
• Content rewritten for release
  • page
  • Code Examples
  • Code using can be copied on the icon list page

ref: https://github.com/ubie-oss/ubie-vitals-website/issues/75

Screnshots

http://localhost:4321/components/icons

http://localhost:4321/components/examples/icon/styling

http://localhost:4321/elements/icons

*Keyboard operation possible.