Configure dev container for SvelteKit.

Author: jamesmurdza

.devcontainer/devcontainer.json

@@ -0,0 +1,19 @@
+{
+    "image": "mcr.microsoft.com/devcontainers/universal:2",
+    "hostRequirements": {
+      "cpus": 4
+    },
+    "waitFor": "onCreateCommand",
+    "updateContentCommand": "npm install",
+    "postCreateCommand": "",
+    "postAttachCommand": {
+      "server": "npm run dev -- --host 0.0.0.0"
+    },
+    "portsAttributes": {
+      "5173": {
+        "label": "Application",
+        "onAutoForward": "openPreview"
+      }
+    },
+    "forwardPorts": [5173]
+  }