Pass null instead of empty string

src/components/Embeds/Embed.tsx

@@ -59,7 +59,7 @@ export const Embed = ({ embedLink }) => {
   const [openSnack, setOpenSnack] = useState(false);
   const [infoSnack, setInfoSnack] = useState(null);
   const [external, setExternal] = useState(null);
-  const [imageUrl, setImageUrl] = useState('');
+  const [imageUrl, setImageUrl] = useState(null);
   const [parsedData, setParsedData] = useState(null);
   const setBlobs = useSetAtom(blobControllerAtom);
   const [selectedGroupId] = useAtom(selectedGroupIdAtom);

src/components/Embeds/ImageEmbed.tsx

@@ -199,7 +199,6 @@ export const ImageCard = ({
 
 export function ImageViewer({ src = null, alt = '' }) {
   const [isFullscreen, setIsFullscreen] = useState(false);
-
   const handleOpenFullscreen = () => setIsFullscreen(true);
   const handleCloseFullscreen = () => setIsFullscreen(false);
   const theme = useTheme();