Update devcontainer.json (#55)

.devcontainer/devcontainer.json

@@ -10,13 +10,19 @@
 		"args": { "VARIANT": "16-bullseye" }
 	},
 
+	// Configure tool-specific properties.
+	"customizations": {
+		// Configure properties specific to VS Code.
+		"vscode": {
 			// Set *default* container specific settings.json values on container create.
 			"settings": {},
 			
 			// Add the IDs of extensions you want installed when the container is created.
 			"extensions": [
 				"dbaeumer.vscode-eslint"
-	],
+			]
+		}
+	},
 
 	// Use 'forwardPorts' to make a list of ports inside the container available locally.
 	// "forwardPorts": [3000],