Feat/label component ignore text buf

[xiaoluoHe]

[中文版模板 / Chinese template]

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🔗 Related issue link

💡 Background and solution

1. As text bound calculation will add 2 pixel buffer which is not necessary in label overlapping, one way to avoid the buf is to configureboundsPadding to a negative value;

2. fix boundsPadding attribute is not work in text graphic.

📝 Changelog

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