🔧 Add client build step before E2E tests in CI

The .vizzlyrc.js config loads plugins from ./dist/plugin.js,
which requires building the client first.

Author: Robdel12

.github/workflows/sdk-e2e.yml

@@ -145,6 +145,10 @@ jobs:
         working-directory: ./clients/storybook
         run: npm install
 
+      - name: Build Storybook client
+        working-directory: ./clients/storybook
+        run: npm run build
+
       - name: Get Puppeteer version
         working-directory: ./clients/storybook
         id: puppeteer-version
@@ -206,6 +210,10 @@ jobs:
         working-directory: ./clients/static-site
         run: npm install
 
+      - name: Build Static-Site client
+        working-directory: ./clients/static-site
+        run: npm run build
+
       - name: Get Puppeteer version
         working-directory: ./clients/static-site
         id: puppeteer-version