Fix wrong OpenGraph image name issue.

Author: anitsh

src/templates/Blog.tsx

@@ -53,7 +53,7 @@ const Blog: React.FC<BlogProps> = (props) => {
         const { site } = layoutProps;
         const progressBarTarget = React.createRef<HTMLDivElement>();
         const parsedDate = new Date(Date.parse(date));
-        const SeoBanner = `/opengraph-images/${slugify(title)}.png`;
+        const SeoBanner = `/opengraph-images/${slug}.png`;
 
         return (
           <article className="h-entry">