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-vhdl.js

@@ -0,0 +1,26 @@
+Prism.languages.vhdl = {
+	'comment': /--.+/,
+	// support for all logic vectors
+	'vhdl-vectors': {
+		'pattern': /\b[oxb]"[\da-f_]+"|"[01uxzwlh-]+"/i,
+		'alias': 'number'
+	},
+	// support for operator overloading included
+	'quoted-function': {
+		pattern: /"\S+?"(?=\()/,
+		alias: 'function'
+	},
+	'string': /"(?:[^\\"\r\n]|\\(?:\r\n|[\s\S]))*"/,
+	'attribute': {
+		pattern: /\b'\w+/,
+		alias: 'attr-name'
+	},
+	// support for predefined attributes included
+	'keyword': /\b(?:access|after|alias|all|architecture|array|assert|attribute|begin|block|body|buffer|bus|case|component|configuration|constant|disconnect|downto|else|elsif|end|entity|exit|file|for|function|generate|generic|group|guarded|if|impure|in|inertial|inout|is|label|library|linkage|literal|loop|map|new|next|null|of|on|open|others|out|package|port|postponed|private|procedure|process|pure|range|record|register|reject|report|return|select|severity|shared|signal|subtype|then|to|transport|type|unaffected|units|until|use|variable|view|wait|when|while|with)\b/i,
+	'boolean': /\b(?:false|true)\b/i,
+	'function': /\w+(?=\()/,
+	// decimal, based, physical, and exponential numbers supported
+	'number': /'[01uxzwlh-]'|\b(?:\d+#[\da-f_.]+#|\d[\d_.]*)(?:e[-+]?\d+)?/i,
+	'operator': /[<>]=?|:=|[-+*/&=]|\b(?:abs|and|mod|nand|nor|not|or|rem|rol|ror|sla|sll|sra|srl|xnor|xor)\b/i,
+	'punctuation': /[{}[\];(),.:]/
+};