Enable redux dev tools and refactor http requests

app/javascript/actions/changePostBoard.ts

@@ -2,6 +2,8 @@ import { Action } from 'redux';
 import { ThunkAction } from 'redux-thunk';
 import { State } from '../reducers/rootReducer';
 
+import buildRequestHeaders from '../helpers/buildRequestHeaders';
+
 export const CHANGE_POST_BOARD_SUCCESS = 'CHANGE_POST_BOARD_SUCCESS';
 export interface ChangePostBoardSuccessAction {
   type: typeof CHANGE_POST_BOARD_SUCCESS;
@@ -21,11 +23,7 @@ export const changePostBoard = (
   try {
     const response = await fetch(`/posts/${postId}`, {
       method: 'PATCH',
-      headers: {
-        Accept: 'application/json',
-        'Content-Type': 'application/json',
-        'X-CSRF-Token': authenticityToken,
-      },
+      headers: buildRequestHeaders(authenticityToken),
       body: JSON.stringify({
         post: {
           board_id: newBoardId,