Bump tailwindcss from 3.3.6 to 3.4.0 in /demo

Bumps [tailwindcss](https://github.com/tailwindlabs/tailwindcss) from 3.3.6 to 3.4.0.
- [Release notes](https://github.com/tailwindlabs/tailwindcss/releases)
- [Changelog](https://github.com/tailwindlabs/tailwindcss/blob/master/CHANGELOG.md)
- [Commits](tailwindlabs/tailwindcss@v3.3.6...v3.4.0)

---
updated-dependencies:
- dependency-name: tailwindcss
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

demo/package.json

@@ -30,7 +30,7 @@
     "standard": "^17.1.0",
     "stylelint": "^15.11.0",
     "stylelint-config-standard": "^34.0.0",
-    "tailwindcss": "^3.3.6",
+    "tailwindcss": "^3.4.0",
     "topbar": "^2.0.1"
   },
   "dependencies": {

demo/yarn.lock

@@ -2902,10 +2902,10 @@ table@^6.8.1:
     string-width "^4.2.3"
     strip-ansi "^6.0.1"
 
-tailwindcss@^3.3.6:
-  version "3.3.6"
-  resolved "https://registry.yarnpkg.com/tailwindcss/-/tailwindcss-3.3.6.tgz#4dd7986bf4902ad385d90d45fd4b2fa5fab26d5f"
-  integrity sha512-AKjF7qbbLvLaPieoKeTjG1+FyNZT6KaJMJPFeQyLfIp7l82ggH1fbHJSsYIvnbTFQOlkh+gBYpyby5GT1LIdLw==
+tailwindcss@^3.4.0:
+  version "3.4.0"
+  resolved "https://registry.yarnpkg.com/tailwindcss/-/tailwindcss-3.4.0.tgz#045a9c474e6885ebd0436354e611a76af1c76839"
+  integrity sha512-VigzymniH77knD1dryXbyxR+ePHihHociZbXnLZHUyzf2MMs2ZVqlUrZ3FvpXP8pno9JzmILt1sZPD19M3IxtA==
   dependencies:
     "@alloc/quick-lru" "^5.2.0"
     arg "^5.0.2"