Merge branch 'dev'

Redirect old Serbian URLs (without /sr/ prefix) to new /sr/ URLs:
- / → /sr (301)
- /products → /sr/products (301)
- /about → /sr/about (301)
- /contact → /sr/contact (301)
- /checkout → /sr/checkout (301)

English URLs (/en/*) remain unchanged. This preserves SEO value
as Google treats 301 as permanent redirect passing ~90-99% PageRank.

src/app/[locale]/about/page.tsx

@@ -45,7 +45,7 @@ export default async function AboutPage({ params }: AboutPageProps) {
         <div className="relative h-[400px] md:h-[500px] overflow-hidden">
           <img
             src="https://images.unsplash.com/photo-1608571423902-eed4a5ad8108?q=80&w=2000&auto=format&fit=crop"
-            alt={metadata.productionAlt}
+            alt={metadata.about.productionAlt}
             className="w-full h-full object-cover"
           />
           <div className="absolute inset-0 bg-black/20" />

src/app/[locale]/page.tsx

@@ -206,7 +206,7 @@ export default async function Homepage({ params }: { params: Promise<{ locale: s
                   <input
                     type="email"
                     placeholder={t("emailPlaceholder")}
-                    className="flex-1 min-w-0 px-5 !h-14 bg-white/10 border border-white/20 border-b-0 sm:border-b border-r-0 sm:border-r border-white/20 text-white placeholder:text-white/50 focus:border-white focus:outline-none transition-colors text-base text-center sm:text-left rounded-t sm:rounded-l sm:rounded-tr-none"
+                    className="flex-1 min-w-0 px-5 !h-16 bg-white/10 border border-white/20 border-b-0 sm:border-b border-r-0 sm:border-r border-white/20 text-white placeholder:text-white/50 focus:border-white focus:outline-none transition-colors text-base text-center sm:text-left rounded-t sm:rounded-l sm:rounded-tr-none"
                   />
                   <button
                       type="submit"

src/app/[locale]/products/[slug]/page.tsx

@@ -87,7 +87,7 @@ export default async function ProductPage({ params }: ProductPageProps) {
 
   let relatedProducts: Product[] = [];
   try {
-    const allProducts = await getProducts(productLocale, 8);
+    const allProducts = await getProducts(saleorLocale, 8);
     relatedProducts = allProducts
       .filter((p: Product) => p.id !== product.id)
       .slice(0, 4);

src/app/[locale]/products/page.tsx

@@ -86,7 +86,7 @@ export default async function ProductsPage({ params }: ProductsPageProps) {
                       key={product.id}
                       product={product}
                       index={index}
-                      locale={productLocale}
+                      locale={validLocale}
                     />
                   ))}
                 </div>

src/components/home/NewsletterSection.tsx

@@ -54,7 +54,7 @@ export default function NewsletterSection() {
               onChange={(e) => setEmail(e.target.value)}
               placeholder={t("emailPlaceholder")}
               required
-              className="flex-1 px-4 py-4 h-12 border border-[#1A1A1A]/10 rounded-[4px] text-sm focus:outline-none focus:border-[#1A1A1A]/30 transition-colors"
+              className="flex-1 px-4 py-4 h-14 border border-[#1A1A1A]/10 rounded-[4px] text-base focus:outline-none focus:border-[#1A1A1A]/30 transition-colors"
             />
             <button
               type="submit"