feat: add blocks showcase and restructure app

src/lib/get-block-file-source.ts

@@ -0,0 +1,11 @@
+import fs from "fs";
+import path from "path";
+
+const SRC_DIR = process.cwd();
+
+export function getBlockFileSource(registryPath: string): string {
+  const filePath = path.join(SRC_DIR, registryPath);
+  const source = fs.readFileSync(filePath, "utf-8");
+
+  return source.replace(/@\/registry\/map/g, "@/components/ui/map");
+}