Bump @ant-design/icons from 4.7.0 to 5.3.6 in /webapp

Bumps [@ant-design/icons](https://github.com/ant-design/ant-design-icons) from 4.7.0 to 5.3.6.
- [Commits](https://github.com/ant-design/ant-design-icons/commits)

---
updated-dependencies:
- dependency-name: "@ant-design/icons"
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

webapp/package.json

@@ -3,7 +3,7 @@
   "version": "0.1.0",
   "private": true,
   "dependencies": {
-    "@ant-design/icons": "^4.7.0",
+    "@ant-design/icons": "^5.3.6",
     "@cosmjs/amino": "^0.29.0",
     "@cosmjs/cosmwasm-stargate": "0.29.3",
     "@cosmjs/launchpad": "^0.27.1",