fix: build desktop frontend before release tests

.github/workflows/release.yml

@@ -29,6 +29,18 @@ jobs:
         with:
           go-version-file: go.mod
 
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: "20"
+          cache: npm
+          cache-dependency-path: desktop/frontend/package-lock.json
+
+      - name: Build desktop frontend
+        run: |
+          npm ci --prefix desktop/frontend
+          npm run build --prefix desktop/frontend
+
       - name: Run tests
         run: go test ./...