fix: linting cleanup, TS errors, mobile cookie banner and hero max-width

app/zapytanie-multisplit/[slug]/page.tsx

@@ -32,7 +32,7 @@ export default async function MultisplitInquiryPage({ params }: Props) {
   const product = getProductBySlug(slug);
   if (!product || product.category !== 'multisplit') notFound();
 
-  const specIcons: Record<string, any> = {
+  const specIcons: Record<string, React.ElementType> = {
     'Moc chłodnicza': Zap,
     'Moc grzewcza': Thermometer,
     'Głośność wewnętrzna (dB)': Volume2,

app/zapytanie-multisplit/actions.ts

@@ -18,7 +18,8 @@ const multisplitFormSchema = z.object({
   productSku: z.string(),
 });
 
-export async function submitMultisplitForm(data: any) {
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
+export async function submitMultisplitForm(data: Record<string, any>) {
   try {
     if (process.env.NEXT_PUBLIC_RECAPTCHA_SITE_KEY && process.env.RECAPTCHA_SECRET_KEY) {
       if (!data.recaptchaToken) {