Refactored fetching to use react-query.

components/helpers/CheckVisible.js

@@ -1,4 +1,4 @@
-import React, { useState, useRef, useEffect } from 'react';
+import { useState, useRef, useEffect } from 'react';
 
 function isInViewport(element) {
   const rect = element.getBoundingClientRect();

components/helpers/StickyHeader.js

@@ -1,4 +1,4 @@
-import React, { useState, useRef, useEffect } from 'react';
+import { useState, useRef, useEffect } from 'react';
 import classNames from 'classnames';
 
 export default function StickyHeader({