Unify Icon component size specification with other components

[8845musign]

Retain the existing specification as an alias.

Changes

• added expressions such as xxxl to size specification
• added comment to specify methods such as 2xl not to be used in the future.

Screenshot

alias specification:

Check

No change in rendering results

• [-] Browser verification (minimum) Android Chrome/iOS Safari(375px-)
• [-] CSS not affected by inheritance
• [-] Layout does not break even if there is an overflow
• [-] Layout does not break when wraps
• [-] Added new Component
  • Added data-* prop and id prop
• [-] Updated Ubie Vitals or Added an update issue(if needed)