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/micromark-factory-space/dev/index.d.ts

@@ -0,0 +1,37 @@
+/**
+ * Parse spaces and tabs.
+ *
+ * There is no `nok` parameter:
+ *
+ * *   spaces in markdown are often optional, in which case this factory can be
+ *     used and `ok` will be switched to whether spaces were found or not
+ * *   one line ending or space can be detected with `markdownSpace(code)` right
+ *     before using `factorySpace`
+ *
+ * ###### Examples
+ *
+ * Where `␉` represents a tab (plus how much it expands) and `␠` represents a
+ * single space.
+ *
+ * ```markdown
+ * ␉
+ * ␠␠␠␠
+ * ␉␠
+ * ```
+ *
+ * @param {Effects} effects
+ *   Context.
+ * @param {State} ok
+ *   State switched to when successful.
+ * @param {TokenType} type
+ *   Type (`' \t'`).
+ * @param {number | undefined} [max=Infinity]
+ *   Max (exclusive).
+ * @returns {State}
+ *   Start state.
+ */
+export function factorySpace(effects: Effects, ok: State, type: TokenType, max?: number | undefined): State;
+import type { Effects } from 'micromark-util-types';
+import type { State } from 'micromark-util-types';
+import type { TokenType } from 'micromark-util-types';
+//# sourceMappingURL=index.d.ts.map