fix(ci): build with GitHub Pages base URL

Author: themightychris

.github/workflows/deploy.yml

@@ -14,7 +14,7 @@ permissions:
 # Allow only one concurrent deployment, skipping runs queued between the run in-progress and latest queued.
 # However, do NOT cancel in-progress runs as we want to allow these production deployments to complete.
 concurrency:
-  group: "pages"
+  group: 'pages'
   cancel-in-progress: true
 
 jobs:
@@ -38,7 +38,7 @@ jobs:
         run: echo "${{ secrets.VITE_ENV }}" | base64 -d > .env
 
       - name: Build
-        run: npm run build
+        run: npx vite build --base=/ballotcure/
 
       - name: Upload artifact
         uses: actions/upload-pages-artifact@v3