[TASK] Avoid inline-javascript in InstallTool ExtensionConfiguration

ExtensionConfiguration uses inline JavaScript for the ColorPicker
initialization. Move the ColorPicker initialization into the
ExtensionConfiguration management module.

Resolves: #96619
Releases: main, 11.5
Change-Id: I6f1407f35c631d2d36d7f26fd0419b415d228a32
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/73126


Tested-by: core-ci <typo3@b13.com>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Benjamin Franzke <bfr@qbus.de>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Benjamin Franzke <bfr@qbus.de>