added blog post page, reverted back to flex blog landing, added types

frontend/routes/posts/index.tsx

@@ -1,7 +1,7 @@
 import { PostCarousel } from "../../components/PostCarousel.tsx";
 
 import { Handlers, PageProps } from "$fresh/server.ts";
-import { Post } from "../../components/PostCard.tsx";
+import { Post } from "../../types/index.ts";
 import * as hi from "jsr:@preact-icons/hi2";
 
 interface PageData {