fix extension

Author: Janther

src/slang-utils/has-prettier-ignore.ts

@@ -1,7 +1,7 @@
 import { isBlockComment, isComment } from './is-comment.js';
 
 import type { AstPath } from 'prettier';
-import type { PrintableNode } from '../slang-nodes/types.js';
+import type { PrintableNode } from '../slang-nodes/types.d.ts';
 
 export function hasPrettierIgnore({
   node