feat(search): Added app embedding functionality and optimized search page #3221 (#9499)

### What problem does this PR solve?
feat(search): Added app embedding functionality and optimized search
page #3221

- Added an Embed App button and related functionality
- Optimized the layout and interaction of the search settings interface
- Adjusted the search result display method
- Refactored some code to support new features
### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

web/src/pages/agent/hooks/use-show-dialog.ts

@@ -85,7 +85,7 @@ const getUrlWithToken = (token: string, from: string = 'chat') => {
   return `${protocol}//${host}/chat/share?shared_id=${token}&from=${from}`;
 };
 
-const useFetchTokenListBeforeOtherStep = () => {
+export const useFetchTokenListBeforeOtherStep = () => {
   const { showTokenEmptyError } = useShowTokenEmptyError();
   const { showBetaEmptyError } = useShowBetaEmptyError();