add port 8080 to forward

.devcontainer/devcontainer.json

@@ -18,7 +18,7 @@
 	],
 	
 	// Use 'forwardPorts' to make a list of ports inside the container available locally.
-	"forwardPorts": [3030],
+	"forwardPorts": [3030, 8080],
 
 	// Specifies a command that should be run after the container has been created.
 //	"postCreateCommand": "yarn install",