feat: refactor product components and add sitemap support

- Updated product components to use new IPageParams interface for better type safety.
- Added next-sitemap configuration and generated sitemap.xml and robots.txt files.
- Removed deprecated ProductCard component and its associated types.
- Enhanced internationalization support across various pages.

next-sitemap.config.js

@@ -0,0 +1,18 @@
+module.exports = {
+  siteUrl: process.env.SITE_URL || 'http://localhost:3000',
+  generateRobotsTxt: true,
+  changefreq: 'weekly',
+  priority: 0.7,
+  sitemapSize: 7000,
+  // Enable i18n support
+  i18n: {
+    locales: ['en', 'fa'],
+    defaultLocale: 'en',
+  },
+  // Optionally, exclude certain paths (like API routes)
+  exclude: ['/api/*', '/_next/*'],
+  // If you want to include additional sitemaps (for subdirectories, etc.)
+  // additionalSitemaps: [
+  //   `${process.env.SITE_URL || 'http://localhost:5000'}/custom-sitemap.xml`,
+  // ],
+};