Update build-cloudflare-pages.sh

Enhanced some lines

scripts/build-cloudflare-pages.sh

@@ -1,13 +1,39 @@
 #!/bin/bash
+
+# Exit on any error
 set -e
 
-npm ci
-npm link
-npm run build
+# Functions for better readability
+install_dependencies() {
+    echo "Installing main dependencies..."
+    npm ci
+}
+
+link_package() {
+    echo "Linking package..."
+    if ! npm link &> /dev/null; then
+        echo "Failed to link package. Exiting."
+        exit 1
+    fi
+}
+
+build_package() {
+    echo "Building main package..."
+    npm run build
+}
+
+setup_demo() {
+    echo "Setting up demo environment..."
+    cd demo
+    npm install
+    npm link dynamic-marquee  # Link the main package in the demo environment
+    npm run build
+}
 
-cd demo
-npm install
-npm link dynamic-marquee
-npm run build
+# Run the functions in sequence
+install_dependencies
+link_package
+build_package
+setup_demo
 
 echo "Done!"