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odoo/o-spreadsheet#3784

Created by BI, Hendrickx Anthony (anhe)

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label: odoo:master-chart-highlight_items-anhe
head: b652f7d995abff0c7801bac76ae1233f11f44ae5

	odoo/o-spreadsheet
master	#3784 ^{missing r+}

[IMP] charts: highlights elements on hover

Task Description

This PR aims to add some interactivity within the charts to allow the user to highlights specific elements in chart when hovering related elements (legend items, pie parts, ...). This also fix the legend behavior to be able to hide/show elements on click.

Related Task(s)

Task: 3782657