System shows "File too large" error when uploading <1MB image

【Bug Title】System shows "File too large" error when uploading <1MB image
【Affected Module】Image upload module
【Steps to Reproduce】

1. Go to the upload page
2. Select an image (size: 500KB)
3. Click "Upload" 【Expected Result】Image uploads successfully 【Actual Result】"File too large" error pops up 【Environment】iOS 17 (Safari) 【Screenshot/Recording】[Optional]