add biome to recommended vscode extensions

.vscode/extensions.json

@@ -0,0 +1,9 @@
+{
+ // See https://go.microsoft.com/fwlink/?LinkId=827846 to learn about workspace recommendations.
+ // Extension identifier format: ${publisher}.${name}. Example: vscode.csharp
+
+ // List of extensions which should be recommended for users of this workspace.
+ "recommendations": ["biomejs.biome"],
+ // List of extensions recommended by VS Code that should not be recommended for users of this workspace.
+ "unwantedRecommendations": []
+}