### What problem does this PR solve?
feat(agent): Added history management and paste handling features #3221
- Added a PasteHandlerPlugin to handle paste operations, optimizing the
multi-line text pasting experience
- Implemented the AgentHistoryManager class to manage history,
supporting undo and redo functionality
- Integrates history management functionality into the Agent component
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
7a27d5e463