feat(dataZoom): change moveHandler cursor icon to move

[ribeirompl]

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Brief Information

This pull request is in the type of:

• [ ] bug fixing
• [x] new feature
• [ ] others

What does this PR do?

Change cursor icon to more intuitive 'move', for dataZoom slider moveHandle

Fixed issues

• #20303

Details

Before: What was the problem?

The Move/Drag icon is not intuitive, and it makes it difficult to know whether you're busy resizing or dragging, when the mouse is nearby the edge.

Original Move/Drag icon	New Move/Drag icon

Document Info

One of the following should be checked.

• [x] This PR doesn't relate to document changes
• [ ] The document should be updated later
• [ ] The document changes have been made in apache/echarts-doc#xxx

Misc

ZRender Changes

• [ ] This PR depends on ZRender changes (ecomfe/zrender#xxx).

Related test cases or examples to use the new APIs

N.A.

Others

Merging options

• [ ] Please squash the commits into a single one when merging.

Other information

[echarts-bot[bot]]

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[ribeirompl]

I did some more research, and it appears that the main icon used for movement in a restricted container is the 'default' icon.

The main examples are scrollbars, in browser windows or other applications:

Example scrollbar in Excel	Example scrollbar in VSCode

My main issue with the current icon, is for the case below:

It is not obvious from a UX perspective, whether the mouse is going to resize or move the view. In the image above it will actually move the container, but if you shift the cursor 1 pixel down it will resize. But that slight movement has no visual changes/indication to the user as to what will happen.

Therefore I propose to change the movement cursor to the 'default' cursor, as used in scrollbars.

[github-actions[bot]]

The changes brought by this PR can be previewed at: https://echarts.apache.org/examples/editor?version=PR-20304@7fe6fa2

[echarts-bot[bot]]

Congratulations! Your PR has been merged. Thanks for your contribution! 👍