Cleanup build stage before rebuild and also fix a CSS bug

.gitea/workflows/build-harbor.yml

@@ -11,6 +11,11 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
+      - name: Free disk before build
+        run: |
+          podman system prune -af --volumes || true
+          df -h
+
       - name: Login to Harbor (Robot)
         if: ${{ secrets.HARBOR_REGISTRY && secrets.HARBOR_USERNAME && secrets.HARBOR_PASSWORD }}
         env:

frontend/src/components/admin/configuration/ConfigurationHeader.tsx

@@ -14,7 +14,7 @@ const ConfigurationHeader = ({
 }) => {
   const config = useConfig();
   return (
-    <header className="h-16 px-4 border-b border-gray-200 dark:border-gray-700 bg-white dark:bg-gray-800">
+    <header className="sticky top-0 z-50 h-16 px-4 border-b border-gray-200 dark:border-gray-700 bg-white dark:bg-gray-800">
       <div className="flex items-center h-full">
         <button
           className="md:hidden mr-4 p-2 text-gray-600 dark:text-gray-400 hover:text-gray-900 dark:hover:text-gray-100"