Docs: Revamp extensions site (#1260)

Co-authored-by: Nahiyan Khan <nahiyan@squareup.com>

.github/workflows/pr-website-preview.yml

@@ -9,7 +9,6 @@ on:
       - closed
     paths:
       - 'documentation/**'
-      - 'extensions-site/**'
 
 concurrency: preview-${{ github.ref }}
 
@@ -21,8 +20,8 @@ jobs:
         uses: actions/checkout@v3
 
       - name: Setup Node.js
-        uses: actions/setup-node@v3
         if: github.event.action != 'closed'
+        uses: actions/setup-node@v3
         with:
           node-version: 20 
 
@@ -38,24 +37,8 @@ jobs:
           npm install
           npm run build
 
-      - name: Install dependencies and build extensions-site
-        working-directory: ./extensions-site
-        env:
-          VITE_BASENAME: "/goose/pr-preview/pr-${{ github.event.number }}/v1/extensions/" # Set the base URL here for the extensions site
-        run: |
-          npm install
-          npm run build
-
-      - name: Combine builds into one directory
-        if: github.event.action != 'closed'
-        run: |
-          mkdir combined-build
-          cp -r documentation/build/* combined-build/
-          mkdir -p combined-build/v1/extensions
-          cp -r extensions-site/build/client/* combined-build/v1/extensions/
-
       - name: Deploy preview
         uses: rossjrw/pr-preview-action@v1
         if: ${{ github.event.pull_request.head.repo.full_name == 'block/goose' }}
         with:
-          source-dir: combined-build
+          source-dir: documentation/build