Shake CI and docs up

ci/vscode.sh

@@ -0,0 +1,19 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# 1. Ensures VS Code is cloned.
+# 2. Patches it.
+# 3. Installs it.
+main() {
+  cd "$(dirname "$0")/.."
+
+  git submodule update --init
+
+  # If the patch fails to apply, then it's likely already applied
+  yarn vscode:patch &>/dev/null || true
+
+  # Install VS Code dependencies.
+  (cd lib/vscode && yarn)
+}
+
+main "$@"