signin singup list : 3개의 페이지 초안
4개의 페이지 완성. company_list는 수정이 필요함
Merge branch 'develop/dh' of github.com:SOMA-PainKiller/AUCD_MVP into develop/sh
Revert "Merge branch 'develop/dh' of github.com:SOMA-PainKiller/AUCD_MVP into develop/sh"

This reverts commit 0a312c2142b239e3b717d7da74372ff3174524fa, reversing
changes made to f7ace314dc640137d8ec937355bc7bc89f78e6e2.
add header
modify index view (list of companies)

루트 도메인(메인 화면)을 새롭게 갱신함.