### What problem does this PR solve?

Add parsing animations to the agent log and optimize some page styles
#3221

### Type of change

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

### What problem does this PR solve?

Replace Avatar with RAGFlowAvatar component for knowledge base and
agent, optimize Agent template page, and modify bugs in knowledge base
#3221

### Type of change

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

### What problem does this PR solve?

Feat: Share agent dialog box externally #3221

### Type of change


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

### What problem does this PR solve?

Feat: Create empty agent #3221

### Type of change


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

### What problem does this PR solve?
Feat: Chat without KB. #5216

### Type of change


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

### What problem does this PR solve?

Feat: Add AgentTemplates component. #3221

### Type of change


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