Setup Devcontainer config (#343)

* Add devcontainer configuration and Dockerfile

* update

.devcontainer/Dockerfile

@@ -0,0 +1,7 @@
+FROM mcr.microsoft.com/devcontainers/javascript-node:0-20
+
+# We uninstall pnpm here, since we enable the corepack version in the postCreateCommand
+# This ensures we respect the "packageManager" version in package.json
+RUN npm uninstall -g pnpm
+
+COPY welcome-message.txt /usr/local/etc/vscode-dev-containers/first-run-notice.txt

.devcontainer/devcontainer.json

@@ -0,0 +1,26 @@
+{
+  "name": "StudioCMS Workspace",
+  "build": {
+    "dockerfile": "Dockerfile"
+  },
+
+  "postCreateCommand": "sudo corepack enable pnpm && pnpm config set store-dir /home/node/.pnpm-store && PUPPETEER_SKIP_CHROMIUM_DOWNLOAD=1 pnpm install",
+
+  "waitFor": "postCreateCommand",
+
+  "customizations": {
+    "codespaces": {
+      "openFiles": ["README.md"]
+    },
+    "vscode": {
+      "extensions": [
+        "astro-build.astro-vscode",
+        "astro-build.houston",
+        "biomejs.biome",
+        "eamodio.gitlens",
+        "redhat.vscode-yaml",
+        "ZainChen.json"
+      ]
+    }
+  }
+}

.devcontainer/welcome-message.txt

@@ -0,0 +1,3 @@
+👋 Welcome to StudioCMS!
+
+🛠️ Your environment is fully setup with all required software installed.