[Bug] It cannot support both cross and shadow modes simultaneously; it supports both crosshair and shadow backgrounds.

### Version

6.0.0

### Link to Minimal Reproduction

echars@6.0.0

### Steps to Reproduce

### Current Behavior

I want to set the cross type under `axisPointer`, and then display the shadow background when the mouse hovers over the crosshair.

### Expected Behavior

I want to display the crosshair by setting the crosshair type under `axisPointer`, and then display the shadow background when the mouse hovers over it.

### Environment

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- OS:
- Browser:
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### Any additional comments?

_No response_