fix: Fix product page syntax errors

1. Remove duplicate/broken code in product tables section
2. Fix PostCSS config for Tailwind 4
3. Add @tailwindcss/postcss dependency
4. Remove --production flag from Dockerfile (sharp required)

All fixes enable successful Docker build with favicon working.

node_modules/@shikijs/langs/dist/angular-template.mjs

@@ -0,0 +1,8 @@
+import angular_expression from './angular-expression.mjs'
+
+const lang = Object.freeze(JSON.parse("{\"injectTo\":[\"text.html.derivative\",\"text.html.derivative.ng\",\"source.ts.ng\"],\"injectionSelector\":\"L:text.html -comment\",\"name\":\"angular-template\",\"patterns\":[{\"include\":\"#interpolation\"}],\"repository\":{\"interpolation\":{\"begin\":\"\\\\{\\\\{\",\"beginCaptures\":{\"0\":{\"name\":\"punctuation.definition.block.ts\"}},\"contentName\":\"expression.ng\",\"end\":\"}}\",\"endCaptures\":{\"0\":{\"name\":\"punctuation.definition.block.ts\"}},\"patterns\":[{\"include\":\"expression.ng\"}]}},\"scopeName\":\"template.ng\",\"embeddedLangs\":[\"angular-expression\"]}"))
+
+export default [
+...angular_expression,
+lang
+]