feat(Icon): mds, phone/birth 아이콘 추가합니다

[suwonthugger]

변경사항

close #187

• birthday 2개의 아이콘, phone 아이콘을 추가했습니다.
• https://6571c88390d085ed7efcce84-xnqydcnbwm.chromatic.com/?path=/story/icons-icons--default
  • 스토리북에서 birthday-primary & secondary / phone 아이콘 확인 가능합니다!

링크

https://sopt-makers.slack.com/lists/T040QGZF77H/F07LCJ586TS?record_id=Rec07TS9CABM2

시급한 정도

🏃‍♂️ 보통 : 최대한 빠르게 리뷰 부탁드립니다.

기타 사항

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