Issue in /src/pages/overview/pdf-embed-api/index.md

The PDF is getting cut off on the right side; there is a lot of margin on the left side. Even in the demo page of the official website, there is a huge left margin; the PDF should be in the centre with no margin cut, and the API is not working properly on mobile devices. Please fix it.

`const previewConfig = {
showDownloadPDF: false,
showPrintPDF: false,
showAnnotationTools: false,
defaultViewMode: "FIT_PAGE",
}
`

Start with /src/pages/overview/pdf-embed-api/index.md and reproduce the embedded PDF using the shown previewConfig on desktop and mobile. Compare the page with the official website demo, then verify that the PDF is centered without right-side clipping and that the API works on mobile.

Written by the indexing model from the issue text.