Bump @hypothesis/frontend-shared from 4.1.0 to 4.3.0

Bumps [@hypothesis/frontend-shared](https://github.com/hypothesis/frontend-shared) from 4.1.0 to 4.3.0.
- [Release notes](https://github.com/hypothesis/frontend-shared/releases)
- [Changelog](https://github.com/hypothesis/frontend-shared/blob/main/CHANGELOG.md)
- [Commits](https://github.com/hypothesis/frontend-shared/compare/v4.1.0...v4.3.0)

---
updated-dependencies:
- dependency-name: "@hypothesis/frontend-shared"
  dependency-type: direct:development
  update-type: version-update:semver-minor
...
Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -12,7 +12,7 @@
     "@babel/preset-env": "^7.1.6",
     "@babel/preset-react": "^7.0.0",
     "@hypothesis/frontend-build": "^1.1.0",
-    "@hypothesis/frontend-shared": "4.1.0",
+    "@hypothesis/frontend-shared": "4.3.0",
     "@octokit/rest": "^18.0.0",
     "@rollup/plugin-babel": "^5.3.0",
     "@rollup/plugin-commonjs": "^21.0.0",

yarn.lock

@@ -1009,10 +1009,10 @@
     fancy-log "^1.3.3"
     glob "^7.2.0"
 
-"@hypothesis/frontend-shared@4.1.0":
-  version "4.1.0"
-  resolved "https://registry.yarnpkg.com/@hypothesis/frontend-shared/-/frontend-shared-4.1.0.tgz#94cf311d4be96f37cb12996b76821e768175bb3b"
-  integrity sha512-sso+lfowXqleDm9NDToR0wMlz+y95FNorKRHzgTUUgRvh7gyZJRfS/XE/XHtsjSuwhkALk78BOxsglHwQ84bIw==
+"@hypothesis/frontend-shared@4.3.0":
+  version "4.3.0"
+  resolved "https://registry.yarnpkg.com/@hypothesis/frontend-shared/-/frontend-shared-4.3.0.tgz#42ccd475e26e10ed28c75357fa94ac35eec60b52"
+  integrity sha512-ciZ7l+YKm8VRWtifc1FNN3m14fj1eCC3Tejgb+UWPLGrawUXhmCgzjm4VKXb3dL0jKiS642ReGNxyiHm+NI7Cw==
   dependencies:
     normalize.css "^8.0.1"