[fix] Use replaceAll instead of replace

to_pdf.js

@@ -41,7 +41,7 @@ function exportToPdf(htmlFile, pdfPath) {
 }
 
 function cleanString(string) {
-  return string.replace(" ", "_");
+  return string.replaceAll(" ", "_");
 }
 
 function exportRenderToPdf(dataFilePath, templatePath, assetsPath, outputPath) {