feat: Add Storybook build step to GitHub Actions workflow

Author: Ho3einWave

.github/workflows/main.yml

@@ -19,6 +19,8 @@ jobs:
             - run: pnpm install
             - name: Install Cypress
               run: pnpx cypress install
+            - name: Build Storybook
+              run: pnpm run build-storybook
             - name: Run Cypress tests
               run: |
                   npx concurrently -k -s first -n "SB,TEST" -c "magenta,blue" \