[WEB-2304] fix: increase z-index from z-20 to z-[21] in dropdown.tsx#5446

SatishGandham merged 1 commit intopreviewmakeplane/plane:previewfrom

fix/sidenav-scrollbar-overlap-in-safarimakeplane/plane:fix/sidenav-scrollbar-overlap-in-safariCopy head branch name to clipboard