[charts] Replace d3-color by CSS filter

[alexfauquette]

Charts rely on the d3-color to derive brighter colors from the initial series's color provided by the user.

Customizing it requires propagating more parameters such as proposed in #13907.

The proposed solution is to use CSS attribute filter to let user override the default color modification only by using CSS classes override

Relevant values:

• filter: brightness(xx%)
• filter: saturate(xx%)

Search keywords:

[github-actions]

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