[#13098] Fix "Invalid prop ref supplied to React.Fragment. React.Fragment can only have key and children props."

Author: jihea-park

web-frontend/src/main/v3/packages/ui/src/components/Popper/Popper.tsx

@@ -7,7 +7,7 @@ import { cn } from '../../lib';
 // eslint-disable-next-line @typescript-eslint/no-explicit-any
 export interface PopperProps extends Omit<PPProps<any>, 'children'> {
   content: React.ReactNode;
-  children: React.ReactElement;
+  children?: React.ReactElement;
   className?: string;
   positionUpdatable?: boolean;
   hideArrow?: boolean;
@@ -66,6 +66,7 @@ export const Popper = ({
     <Manager>
       <Reference>
         {({ ref }) =>
+          children &&
           React.cloneElement(children, {
             ref: mergeRefs([ref, referenceRef]),
             onClick: handleClickTarget,

web-frontend/src/main/v3/packages/ui/src/components/ServerMap/ServerMapMenu.tsx

@@ -39,9 +39,7 @@ export const ServerMapMenu = ({ children, position, contentType }: ServerMapMenu
             },
           ]}
           hideArrow
-        >
-          <></>
-        </Popper>
+        />
       )}
     </>
   );