fix: add missing theme build step to GitHub Actions deployment workflow

- Add 'pnpm build:theme' step to both portal and standards build jobs
- Theme package must be built before sites can build since they depend on @ifla/theme/dist/config.js
- This resolves the 'Cannot find module' errors that were causing all builds to fail
- Ensures theme package is compiled before Docusaurus attempts to load site configurations

Author: jonphipps

.github/workflows/deploy-all.yml

@@ -118,7 +118,10 @@ jobs:
           
       - name: Install dependencies
         run: pnpm install --frozen-lockfile
-        
+
+      - name: Build theme package
+        run: pnpm build:theme
+
       - name: Build portal
         run: pnpm exec docusaurus build portal
         env:
@@ -199,7 +202,11 @@ jobs:
       - name: Install dependencies
         if: steps.should-build.outputs.build == 'true'
         run: pnpm install --frozen-lockfile
-        
+
+      - name: Build theme package
+        if: steps.should-build.outputs.build == 'true'
+        run: pnpm build:theme
+
       - name: Build ${{ matrix.standard }}
         if: steps.should-build.outputs.build == 'true'
         run: pnpm exec docusaurus build standards/${{ matrix.standard }}