Bump web-vitals from 3.1.0 to 3.1.1 in /src (#3324)

* Bump web-vitals from 3.1.0 to 3.1.1 in /src

Bumps [web-vitals](https://github.com/GoogleChrome/web-vitals) from 3.1.0 to 3.1.1.
- [Release notes](https://github.com/GoogleChrome/web-vitals/releases)
- [Changelog](https://github.com/GoogleChrome/web-vitals/blob/main/CHANGELOG.md)
- [Commits](GoogleChrome/web-vitals@v3.1.0...v3.1.1)

---
updated-dependencies:
- dependency-name: web-vitals
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

* Remove web-vitals (which is built)

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Barry Pollard <barrypollard@google.com>

Author: dependabot[bot]

src/.gitignore

@@ -7,5 +7,6 @@ templates/*/*/ebook.html
 templates/*/rss.xml
 templates/sitemap.xml
 static/html/
+static/js/web-vitals.js
 deployed.zip
 .coverage

src/package-lock.json

@@ -46,7 +46,7 @@
     "run-script-os": "1.1.6",
     "showdown": "2.1.0",
     "smartypants": "0.1.6",
-    "web-vitals": "3.1.0",
+    "web-vitals": "3.1.1",
     "xml-js": "1.6.11"
   }
 }