feat: customize README for Tibia Trade marketplace and enhance page accessibility

- Rewrote README.md to describe the Tibia Trade project, including features, setup instructions, technologies, and SEO keywords in Portuguese
- Removed "Pagodera" from thank you page text for rebranding
- Added role and aria-label to main element in home page for better accessibility
- Added metadata generation with localized titles and descriptions to prices page for improved SEO and user experience

components/sections/hero-section.tsx

@@ -13,9 +13,11 @@ export function HeroSection() {
     <section className="relative min-h-[600px] flex items-center justify-center overflow-hidden bg-gradient-to-br from-background to-muted/20 px-4">
       <div className="w-full max-w-4xl mx-auto flex flex-col items-center justify-center text-center space-y-8">
         <BlurFade delay={0.2}>
-          <AnimatedGradientText className="text-5xl md:text-7xl font-bold">
-            {t("title")}
-          </AnimatedGradientText>
+          <h1>
+            <AnimatedGradientText className="text-5xl md:text-7xl font-bold">
+              {t("title")}
+            </AnimatedGradientText>
+          </h1>
         </BlurFade>
 
         <BlurFade delay={0.4}>