upgrade biome to 2.0.6 (#7517)

apps/playground-web/biome.json

@@ -1,4 +1,4 @@
 {
-  "$schema": "https://biomejs.dev/schemas/2.0.4/schema.json",
+  "$schema": "https://biomejs.dev/schemas/2.0.6/schema.json",
   "extends": "//"
 }

apps/playground-web/package.json

@@ -35,7 +35,7 @@
     "zod": "3.25.67"
   },
   "devDependencies": {
-    "@biomejs/biome": "2.0.4",
+    "@biomejs/biome": "2.0.6",
     "@types/node": "22.14.1",
     "@types/react": "19.1.8",
     "@types/react-dom": "19.1.6",
@@ -57,6 +57,7 @@
     "dev": "rm -rf .next && next dev --turbopack",
     "fix": "eslint ./src --fix",
     "format": "biome format ./src --write",
+    "knip": "knip",
     "lint": "biome check ./src && knip && eslint ./src",
     "prefix": "biome check ./src --fix",
     "prelint": "biome check ./src",

apps/playground-web/src/components/blockchain-api/write-contract-raw.tsx

@@ -121,19 +121,18 @@ export function WriteContractRawPreview() {
       {error ? (
         <div className="mt-4 text-center text-red-600">{error}</div>
       ) : (
-        <>
-          {txHash && sepolia.blockExplorers && (
-            <a
-              className="mt-3 text-center text-green-400"
-              href={`${sepolia.blockExplorers[0].url}/tx/${txHash}`}
-              rel="noreferrer"
-              target="_blank"
-            >
-              Tx sent:{" "}
-              <span className="underline">{shortenAddress(txHash, 6)}</span>
-            </a>
-          )}
-        </>
+        txHash &&
+        sepolia.blockExplorers && (
+          <a
+            className="mt-3 text-center text-green-400"
+            href={`${sepolia.blockExplorers[0].url}/tx/${txHash}`}
+            rel="noreferrer"
+            target="_blank"
+          >
+            Tx sent:{" "}
+            <span className="underline">{shortenAddress(txHash, 6)}</span>
+          </a>
+        )
       )}
     </div>
   );