Google Form Script, send email with attachment from drive on submit

gistfile.js

function onFormSubmit( e ) {
	const values = e.namedValues;

	//e.values is an array of form values
	const fecha = e.values[ 0 ];
	const email = e.values[ 1 ];

	//file is the template file, and you get it by ID
	const file = DriveApp.getFileById(
		'FILE_ID'
	);

	//We can make a copy of the template, name it, and optionally tell it what folder to live in
	//file.makeCopy will return a Google Drive file object
	const folder = DriveApp.getFolderById( 'FOLDER_ID' );
	const copy = file.makeCopy( email + ' - ' + fecha, folder );

	//Once we've got the new file created, we need to open it as a document by using its ID
	const doc = DocumentApp.openById( copy.getId() );

	//Since everything we need to change is in the body, we need to get that
	const body = doc.getBody();

	//Then we call all of our replaceText methods
	body.replaceText( '{{Date}}', date );

	let htmlBody = '<ul>';

	for ( const key in values ) {
		const label = key;
		const data = values[ key ];
		htmlBody += '<li><strong>' + label + '</strong>: ' + data + '</li>';
		body.replaceText( '{{' + label + '}}', data );
	}

	htmlBody += '</ul>';

	//Lastly we save and close the document to persist our changes
	doc.getAs( 'application/pdf' ).setName( doc.getName() + '.pdf' );
	doc.saveAndClose();

	const docAsPDF = DriveApp.getFileById( copy.getId() );

	GmailApp.sendEmail( email, 'TITLE', 'TITLE', {
		htmlBody,
		attachments: [ docAsPDF.getAs( MimeType.PDF ) ],
	} );
}

function onEdit( e ) {
	const formID = '';
	const ssID = '';
	const wsData = SpreadsheetApp.openById( ssID ).getSheetByName( 'emails' );
	const form = FormApp.openById( formID );

	const emails = wsData
		.getRange( 2, 1, wsData.getLastRow() )
		.getValues()
		.join( '|' )
		.slice( 0, -1 );
	const items = form.getItems();
	const itemId = items[ 0 ].getId();
	const emailItem = form.getItemById( itemId ).asTextItem();
	//   Logger.log(emailItem.getTitle(), emailItem.getType());
	const emailValidation = FormApp.createTextValidation()
		.requireTextMatchesPattern( emails )
		.build();
	emailItem.setValidation( emailValidation );
}