feat: enhance SEO capabilities and add All Tools page

- Updated generate-seo-assets script to create separate sitemap files for static, blog, tools, and SEO pages.
- Introduced render-seo-shells script to generate HTML shells for SEO pages with dynamic metadata.
- Added All Tools page with categorized tool listings and SEO metadata.
- Updated routing to include /tools path and linked it in the footer.
- Enhanced SEOHead component to remove unused keywords and improve OpenGraph metadata.
- Updated translations for tools hub in English, Arabic, and French.
- Refactored SEO-related utility functions to support new structured data formats.

frontend/src/App.tsx

@@ -24,6 +24,7 @@ const PricingPage = lazy(() => import('@/pages/PricingPage'));
 const BlogPage = lazy(() => import('@/pages/BlogPage'));
 const BlogPostPage = lazy(() => import('@/pages/BlogPostPage'));
 const DevelopersPage = lazy(() => import('@/pages/DevelopersPage'));
+const AllToolsPage = lazy(() => import('@/pages/AllToolsPage'));
 const InternalAdminPage = lazy(() => import('@/pages/InternalAdminPage'));
 const SeoRoutePage = lazy(() => import('@/pages/SeoRoutePage'));
 const CookieConsent = lazy(() => import('@/components/layout/CookieConsent'));
@@ -129,6 +130,7 @@ export default function App() {
             <Route path="/blog" element={<BlogPage />} />
             <Route path="/blog/:slug" element={<BlogPostPage />} />
             <Route path="/developers" element={<DevelopersPage />} />
+            <Route path="/tools" element={<AllToolsPage />} />
             <Route path="/internal/admin" element={<InternalAdminPage />} />
             <Route path="/ar/:slug" element={<SeoRoutePage />} />
             <Route path="/:slug" element={<SeoRoutePage />} />