fix(axis): containLabel work with multi axis without offset. fix #18077

[MeetzhDing]

Brief Information

This pull request is in the type of:

• bug fixing
• new feature
• others

What does this PR do?

fix #18077 .

grid.containLabel will work better when multi axis.

Details

Before: What was the problem?

If you don‘t provide yAxis.offset, labels will overlay.
But every yAxis will take extra space in grid when grid.containLabel is true.

After: How does it behave after the fixing?

In grid.containLabel logic, if axis.offset is not provided, it will calc by labelUnionRect.

Document Info

One of the following should be checked.

• 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

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[github-actions]

This PR has been automatically marked as stale because it has not had recent activity. It will be closed in 7 days if no further activity occurs. If you wish not to mark it as stale, please leave a comment in this PR. We are sorry for this but 2 years is a long time and the code base has been changed a lot. Thanks for your contribution anyway.

[github-actions]

This PR has been automatically closed because it has not had recent activity. Sorry for that and we are looking forward to your next contribution.