fix: plugin-selection edge selection when moving

[yugasun]

Description

When set showEdgeSelectionBox to true, moving node the edge selection do not update.

Motivation and Context

bugfix #3084

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
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• Refactoring (changes that neither fixes a bug nor adds a feature)
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• Code style optimization (changes that do not affect the meaning of the code)
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• Chore (changes that don't modify src or test files)

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• I have updated the documentation accordingly.
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[x6-bot]

👋 @yugasun

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[NewByVector]

这个没有考虑到 source 和 target 没有连接到节点的场景。比如连接到具体的 point。而且这样实现的话，如果批量移动节点，会有性能问题的。