[#141] refactor: 타입검사 함수 외부화

Author: YiSoJeong

frontend/src/utils/index.ts

@@ -1,5 +1,10 @@
 export { fetchDummyData } from './fetchDummyData';
-export { regex, fontSize, placeHolder, listComponent } from './blockContent';
+export {
+  validateType,
+  fontSize,
+  placeHolder,
+  listComponent,
+} from './blockContent';
 export * from './debounce';
 export * from './fetchApi';
 export * from './blockApis';