feat: Add licensing page and FAQ script, update site content and navigation, and refine PDF tool logic for multi tool

vite.config.ts

@@ -51,6 +51,7 @@ export default defineConfig(({ mode }) => ({
         privacy: resolve(__dirname, 'privacy.html'),
         terms: resolve(__dirname, 'terms.html'),
         bookmark: resolve(__dirname, 'src/pages/bookmark.html'),
+        licensing: resolve(__dirname, 'licensing.html'),
         'table-of-contents': resolve(
           __dirname,
           'src/pages/table-of-contents.html'