Bump the frontend group in /frontend with 3 updates

Bumps the frontend group in /frontend with 3 updates: [@bufbuild/buf](https://github.com/bufbuild/buf), [jsdom](https://github.com/jsdom/jsdom) and [postcss](https://github.com/postcss/postcss).


Updates `@bufbuild/buf` from 1.68.4 to 1.69.0
- [Release notes](https://github.com/bufbuild/buf/releases)
- [Changelog](https://github.com/bufbuild/buf/blob/main/CHANGELOG.md)
- [Commits](bufbuild/buf@v1.68.4...v1.69.0)

Updates `jsdom` from 29.0.2 to 29.1.1
- [Release notes](https://github.com/jsdom/jsdom/releases)
- [Commits](jsdom/jsdom@v29.0.2...v29.1.1)

Updates `postcss` from 8.5.10 to 8.5.13
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](postcss/postcss@8.5.10...8.5.13)

---
updated-dependencies:
- dependency-name: "@bufbuild/buf"
  dependency-version: 1.69.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: frontend
- dependency-name: jsdom
  dependency-version: 29.1.1
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: frontend
- dependency-name: postcss
  dependency-version: 8.5.13
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: frontend
...

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

Author: dependabot[bot]

frontend/package.json

@@ -22,7 +22,7 @@
   },
   "devDependencies": {
     "@biomejs/biome": "^2.4.13",
-    "@bufbuild/buf": "^1.68.4",
+    "@bufbuild/buf": "^1.69.0",
     "@bufbuild/protoc-gen-es": "^2.12.0",
     "@sveltejs/adapter-auto": "^7.0.1",
     "@sveltejs/adapter-node": "^5.5.4",
@@ -36,8 +36,8 @@
     "@vite-pwa/sveltekit": "^1.1.0",
     "@vitest/ui": "^4.1.5",
     "autoprefixer": "^10.5.0",
-    "jsdom": "^29.0.2",
-    "postcss": "^8.5.10",
+    "jsdom": "^29.1.1",
+    "postcss": "^8.5.13",
     "svelte": "^5.55.5",
     "svelte-check": "^4.4.6",
     "tailwindcss": "^4.2.4",