👷(ci) deploy demo app on gh-pages

We want to provide a public access to our demo app.

apps/demo/package.json

@@ -8,6 +8,7 @@
     "dev": "vite & nodemon --watch cunningham.ts --exec yarn build-theme",
     "build-theme": "cunningham -o src -g css,ts",
     "build": "tsc && vite build",
+    "build-demo": "tsc && vite build --base=/cunningham/demo/",
     "preview": "vite preview"
   },
   "dependencies": {

scripts/predeploy-ghpages

@@ -1,9 +1,15 @@
 rm -rf ghpages-output
-mkdir -p ghpages-output/storybook
 
+mkdir -p ghpages-output/storybook
 cd packages/react && yarn build-storybook
 cd ../..
 mv packages/react/storybook-static/* ghpages-output/storybook
 
+mkdir -p ghpages-output/demo
+cd apps/demo && yarn build-demo
+cd ../..
+mv apps/demo/dist/* ghpages-output/demo
+
 touch ./ghpages-output/.nojekyll
 touch ./ghpages-output/storybook/.nojekyll
+touch ./ghpages-output/demo/.nojekyll