Feat: New search page components and features (#9344)

### What problem does this PR solve?

Feat: New search page components and features #3221

- Added search homepage, search settings, and ongoing search components
- Implemented features such as search app list, creating search apps,
and deleting search apps
- Optimized the multi-select component, adding disabled state and suffix
display
- Adjusted navigation hooks to support search page navigation

### Type of change

- [x] New Feature (non-breaking change which adds functionality)

web/src/components/ragflow-avatar.tsx

@@ -23,8 +23,8 @@ const getColorForName = (name: string): { from: string; to: string } => {
   const hue = hash % 360;
 
   return {
-    from: `hsl(${hue}, 70%, 80%)`,
-    to: `hsl(${hue}, 60%, 30%)`,
+    to: `hsl(${hue}, 70%, 80%)`,
+    from: `hsl(${hue}, 60%, 30%)`,
   };
 };
 export const RAGFlowAvatar = memo(