Create basic devontainer config

* allows to use codespaces with the right node version

.devcontainer/devcontainer.json

@@ -0,0 +1,19 @@
+{
+	"name": "Node.js & TypeScript",
+	"image": "mcr.microsoft.com/devcontainers/typescript-node:16-bullseye"
+
+	// Features to add to the dev container. More info: https://containers.dev/features.
+	// "features": {},
+
+	// Use 'forwardPorts' to make a list of ports inside the container available locally.
+	// "forwardPorts": [],
+
+	// Use 'postCreateCommand' to run commands after the container is created.
+	// "postCreateCommand": "yarn install",
+
+	// Configure tool-specific properties.
+	// "customizations": {},
+
+	// Uncomment to connect as root instead. More info: https://aka.ms/dev-containers-non-root.
+	// "remoteUser": "root"
+}