Fix wallet image fallback (#3000)

Author: MananTank

.changeset/bright-eyes-fix.md

@@ -0,0 +1,5 @@
+---
+"thirdweb": patch
+---
+
+Fix WalletImage fallback icon

packages/thirdweb/src/react/web/ui/components/Img.tsx

@@ -27,7 +27,7 @@ export const Img: React.FC<{
   const widthPx = `${props.width}px`;
   const heightPx = `${props.height || props.width}px`;
 
-  if (!propSrc) {
+  if (propSrc === undefined) {
     return <Skeleton width={widthPx} height={heightPx} />;
   }
 

packages/thirdweb/src/react/web/ui/components/WalletImage.tsx

@@ -112,7 +112,7 @@ function WalletImageQuery(props: {
   return (
     <Img
       client={props.client}
-      src={walletImage.data}
+      src={walletImage.isLoading ? undefined : walletImage.data || ""}
       fallbackImage={genericWalletIcon}
       width={props.size}
       height={props.size}