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/astro/dist/preferences/defaults.js

@@ -0,0 +1,18 @@
+const DEFAULT_PREFERENCES = {
+  devToolbar: {
+    /** Specifies whether the user has the Dev Overlay enabled */
+    enabled: true
+  },
+  checkUpdates: {
+    /** Specifies whether the user has the update check enabled */
+    enabled: true
+  },
+  // Temporary variables that shouldn't be exposed to the users in the CLI, but are still useful to store in preferences
+  _variables: {
+    /** Time since last update check */
+    lastUpdateCheck: 0
+  }
+};
+export {
+  DEFAULT_PREFERENCES
+};