Replace colorpicker icon with ColorSwatch

[manuelmeister]

It makes sense to use the swatch, as it also shows the contrast color.

Before:

After:

[github-actions]

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[sentry-io]

Suspect Issues

This pull request was deployed and Sentry observed the following issues:

• ‼️ TypeError: Could not parse #00000 as a color. Missing a plugin? contrastColor(src/common/helpers/colors) View Issue

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