feat: Refactor generateMetadata function to improve performance and readability

src/app/themes/[theme]/page.tsx

@@ -5,37 +5,6 @@ import ThemePage from "@/components/theme-page";
 import { getAllThemes, getThemeFromId } from "@/lib/themes";
 import { Metadata, ResolvingMetadata } from "next";
 
-export async function generateMetadata(
-  { params, searchParams }: any,
-  parent: ResolvingMetadata
-): Promise<Metadata> {
-  const theme = params.theme
-  const themeData = await getThemeFromId(theme);
-  if (!themeData) {
-    return {
-      title: "Theme not found",
-      description: "Theme not found",
-    };
-  }
-  return {
-    title: themeData.name,
-    description: themeData.description,
-    keywords: [themeData.name, themeData.description],
-    openGraph: {
-      title: themeData.name,
-      description: themeData.description,
-      images: [
-        {
-          url: themeData.image,
-          width: 500,
-          height: 500,
-          alt: themeData.name,
-        },
-      ],
-    },
-  };
-}
-
 export async function generateStaticParams() {
   const themes = await getAllThemes();
   return themes.map((theme) => ({