### What problem does this PR solve?

fix: Optimized popups and the search page #3221 
- Added a new PortalModal component
- Refactored the Modal component, adding show and hide methods to
support popups
- Updated the search page, adding a new query function and optimizing
the search card style
- Localized, added search-related translations

### Type of change

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

### What problem does this PR solve?

Fix: Fix share-chat bugs #3221

### Type of change

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

### What problem does this PR solve?
Feat: Make the agent dialog window exposed to the outside world fill in
the begin form #3221

### Type of change


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