Fix whitespace issues due to JSX whitespace change, small deploy improvements

.gitea/workflows/deploy.yaml

@@ -22,7 +22,9 @@ jobs:
           path: |
             node_modules/.astro/
             node_modules/.vite/
-          key: ${{ runner.os }}-buildcache
+          key: ${{ runner.os }}-buildcache-${{ hashFiles('package-lock.json') }}
+          restore-keys: |
+            ${{ runner.os }}-buildcache-
 
       - name: Setup Node
         uses: actions/setup-node@v5
@@ -33,11 +35,15 @@ jobs:
       - name: Install
         shell: "bash"
         working-directory: .
-        run: npm install
+        run: npm ci
 
       - name: Build
         shell: "bash"
         working-directory: .
+        env:
+          # Bound libuv/sharp thread usage: the builder is small and
+          # full parallelism OOMs it. Raise if the host grows.
+          UV_THREADPOOLSIZE: 4
         run: npm run build
 
       - name: Set up SSH