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/prismjs/components/prism-matlab.js

@@ -0,0 +1,16 @@
+Prism.languages.matlab = {
+	'comment': [
+		/%\{[\s\S]*?\}%/,
+		/%.+/
+	],
+	'string': {
+		pattern: /\B'(?:''|[^'\r\n])*'/,
+		greedy: true
+	},
+	// FIXME We could handle imaginary numbers as a whole
+	'number': /(?:\b\d+(?:\.\d*)?|\B\.\d+)(?:[eE][+-]?\d+)?(?:[ij])?|\b[ij]\b/,
+	'keyword': /\b(?:NaN|break|case|catch|continue|else|elseif|end|for|function|if|inf|otherwise|parfor|pause|pi|return|switch|try|while)\b/,
+	'function': /\b(?!\d)\w+(?=\s*\()/,
+	'operator': /\.?[*^\/\\']|[+\-:@]|[<>=~]=?|&&?|\|\|?/,
+	'punctuation': /\.{3}|[.,;\[\](){}!]/
+};