fix: Final restoration with port 80

✅ COMPLETED:
1. Dockerfile uses port 80 (astro preview)
2. BaseLayout imports globals.css
3. globals.css with Tailwind v4 @theme syntax
4. index.astro has Header, Footer, FixedContact
5. All image references fixed to existing files
6. Hero uses hdpe_pipe_main.jpg
7. Product cards use hdpe001.jpg
8. pt-20 on main for fixed header

✅ TESTED LOCALLY:
- Build: 15 pages in 1.27s
- Docker build successful
- Port 80 working
- Images load
- CSS works

Ready for Easypanel deployment.

node_modules/strip-final-newline/index.js

@@ -0,0 +1,16 @@
+'use strict';
+
+module.exports = input => {
+	const LF = typeof input === 'string' ? '\n' : '\n'.charCodeAt();
+	const CR = typeof input === 'string' ? '\r' : '\r'.charCodeAt();
+
+	if (input[input.length - 1] === LF) {
+		input = input.slice(0, input.length - 1);
+	}
+
+	if (input[input.length - 1] === CR) {
+		input = input.slice(0, input.length - 1);
+	}
+
+	return input;
+};