Bump @babel/preset-env from 7.13.12 to 7.14.5 in /web/app (#6296)

Bumps [@babel/preset-env](https://github.com/babel/babel/tree/HEAD/packages/babel-preset-env) from 7.13.12 to 7.14.5.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/main/CHANGELOG.md)
- [Commits](https://github.com/babel/babel/commits/v7.14.5/packages/babel-preset-env)

---
updated-dependencies:
- dependency-name: "@babel/preset-env"
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

web/app/package.json

@@ -40,7 +40,7 @@
     "@babel/core": "^7.13.10",
     "@babel/eslint-parser": "^7.13.10",
     "@babel/plugin-proposal-class-properties": "^7.13.0",
-    "@babel/preset-env": "^7.13.12",
+    "@babel/preset-env": "^7.14.5",
     "@babel/preset-react": "^7.12.13",
     "@babel/runtime": "^7.13.10",
     "@lingui/cli": "2.9.2",