Add explicit dependency on @storybook/theming

Author: ryanwilsonperkin

pnpm-lock.yaml

@@ -85,6 +85,7 @@
     "@storybook/preview-api": "^7.6.4",
     "@storybook/react": "^7.6.4",
     "@storybook/react-vite": "^7.6.4",
+    "@storybook/theming": "^7.6.4",
     "@types/js-yaml": "^4.0.5",
     "@types/node": "^16.11.11",
     "@types/react": "^18.2.0",