### What problem does this PR solve?
Feat: Integrate the name, avatar, and description of chat and search
into a single component.
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
<!-- This is an auto-generated comment: release notes by coderabbit.ai
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## Summary by CodeRabbit
* **New Features**
* Inline-editable avatar, name, and description fields
* Expandable content blocks in search results
* New RAGFlow heading/logo component
* **Refactor**
* Replaced scattered form fields with a composed Avatar/Name/Description
component
* Mindmap drawer converted to a sheet-based drawer and layout cleanup
* Simplified search page controls and layout; improved scroll viewport
handling
* **Chores**
* Added/updated English and Chinese localization keys (placeholders,
view more/less)
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
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Co-authored-by: Yingfeng <yingfeng.zhang@gmail.com>
