chore: revert TsImportFile resolve

Author: underfin

playground/vue/TsImport.vue

@@ -5,6 +5,6 @@
 </template>
 
 <script setup lang="ts">
-import { foo } from '@/TsImportFile'
-import { foo as foo2 } from '/@/TsImportFile'
+import { foo } from '@/TsImportFile.js'
+import { foo as foo2 } from '/@/TsImportFile.js'
 </script>