Refactor site configuration and color scheme management

- Replaced static config with dynamic site info context.
- Updated color scheme handling in various components to use site info.
- Removed deprecated config file and integrated site info fetching.
- Enhanced user preference page to allow color scheme selection.
- Adjusted blog and console components to reflect new site info structure.
- Improved error handling and fallback mechanisms for site info retrieval.

web/src/app/console/user-preference/page.tsx

@@ -1,3 +1,5 @@
+import { UserPreferencePage } from "@/components/console/user-preference";
+
 export default function Page() {
-  return <div>个性化设置</div>
+  return <UserPreferencePage />
 }