[web] download-pdf-button-click event tracking (#12059)

* [web] `download-pdf-button-click` event tracking

GitOrigin-RevId: 20baae4fff989b5120ae03f81cc47f7d6874dd7b

services/web/frontend/js/features/pdf-preview/components/pdf-hybrid-download-button.tsx

@@ -3,15 +3,23 @@ import { Button } from 'react-bootstrap'
 import Tooltip from '../../../shared/components/tooltip'
 import Icon from '../../../shared/components/icon'
 import { useDetachCompileContext as useCompileContext } from '../../../shared/context/detach-compile-context'
+import { useProjectContext } from '../../../shared/context/project-context'
+import * as eventTracking from '../../../infrastructure/event-tracking'
 
 function PdfHybridDownloadButton() {
   const { pdfDownloadUrl } = useCompileContext()
 
+  const { _id: projectId } = useProjectContext()
+
   const { t } = useTranslation()
   const description = pdfDownloadUrl
     ? t('download_pdf')
     : t('please_compile_pdf_before_download')
 
+  function handleOnClick() {
+    eventTracking.sendMB('download-pdf-button-click', { projectId })
+  }
+
   return (
     <Tooltip
       id="logs-toggle"
@@ -19,6 +27,7 @@ function PdfHybridDownloadButton() {
       overlayProps={{ placement: 'bottom' }}
     >
       <Button
+        onClick={handleOnClick}
         bsStyle="link"
         disabled={!pdfDownloadUrl}
         download