[update] migrate the project formatter from prettier and eslint to biome

types/frontmatter.type.ts

@@ -1,4 +1,4 @@
-import { NonEmptyArray } from "./utils.type";
+import type { NonEmptyArray } from "./utils.type";
 
 export type TFrontmatter = {
   title: string;

types/post-list.ts

@@ -1,4 +1,4 @@
-import { TFrontmatter } from "./frontmatter.type";
+import type { TFrontmatter } from "./frontmatter.type";
 
 export type TPostListItem = {
   id: string;