Add bottom sheet menu in

src/app/features/room/MessageOptionsMenu.tsx

@@ -285,3 +285,57 @@ export function MessageOptionsMenu({
     </div>
   );
 }
+
+export function BottomSheetMenu({
+  isOpen,
+  onClose,
+  children,
+}: {
+  isOpen: boolean;
+  onClose: () => void;
+  children: React.ReactNode;
+}) {
+  return (
+    <div
+      style={{ position: 'fixed', inset: 0, zIndex: 1000, pointerEvents: isOpen ? 'auto' : 'none' }}
+    >
+      <div
+        className={classNames(css.menuBackdrop, { [css.menuBackdropOpen]: isOpen })}
+        onClick={onClose}
+        aria-hidden="true"
+      />
+      <div
+        className={classNames(css.menuSheet, { [css.menuSheetOpen]: isOpen })}
+        role="dialog"
+        aria-modal="true"
+      >
+        {children}
+      </div>
+    </div>
+  );
+}
+
+export function MenuItemButton({
+  label,
+  onClick,
+  destructive = false,
+}: {
+  label: string;
+  onClick: () => void;
+  destructive?: boolean;
+}) {
+  return (
+    <Box
+      as="button"
+      onClick={onClick}
+      alignItems="Center"
+      gap="400"
+      className={classNames(css.menuItem, { [css.menuItemDestructive]: destructive })}
+    >
+      <Icon src={Icons.Alphabet} size="100" />
+      <Text size="B300" style={{ color: 'inherit' }}>
+        {label}
+      </Text>
+    </Box>
+  );
+}