Feat: The delete button is displayed only when the cursor is hovered over the connection line #3221 (#8422)

### What problem does this PR solve?

Feat: The delete button is displayed only when the cursor is hovered
over the connection line #3221

### Type of change


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

web/src/pages/agent/hooks.tsx

@@ -90,6 +90,8 @@ const selector = (state: RFState) => ({
   onConnect: state.onConnect,
   setNodes: state.setNodes,
   onSelectionChange: state.onSelectionChange,
+  onEdgeMouseEnter: state.onEdgeMouseEnter,
+  onEdgeMouseLeave: state.onEdgeMouseLeave,
 });
 
 export const useSelectCanvasData = () => {