refactor: remove userFields (#791)

* refactor: process custom fields on cache generate

* refactor: remove userFields

apps/client/src/features/modals/upload-modal/UploadFile.tsx

@@ -1,9 +1,10 @@
 import { ChangeEvent, useRef, useState } from 'react';
 import { Input } from '@chakra-ui/react';
 
+import { validateFile } from '../../../common/utils/uploadUtils';
+
 import UploadEntry from './upload-entry/UploadEntry';
 import { useUploadModalContextStore } from './uploadModalContext';
-import { validateFile } from './uploadUtils';
 
 import style from './UploadModal.module.scss';
 
@@ -52,12 +53,12 @@ export default function UploadFile() {
         style={{ display: 'none' }}
         type='file'
         onChange={handleFile}
-        accept='.json, .xlsx'
+        accept='.json'
         data-testid='file-input'
       />
       {!file && (
         <div className={style.uploadArea} onClick={handleClick} role='button'>
-          Click to select Ontime project or xlsx rundown
+          Click to select Ontime project
         </div>
       )}
       {(file || errors) && <UploadEntry file={file} errors={errors} progress={progress} handleClear={clearFile} />}