The mobile nav drawer in TopNav has its own X button inside the panel
header, but SheetContent was also rendering the shadcn primitive close
button just outside the panel — two X buttons for the same sheet.
Add an opt-in `hideClose` prop to SheetContent and set it on the
TopNav drawer. Other Sheet consumers (MobileDrawer, etc.) keep the
default built-in close.
mkfain
f413d29fa1