* feature: add leds panel
* Various refactors and improvements
* lint fixes
* led: use more columns for the selector
* leds: name in the title
* mainsail presets
* change sliders to horizontal to avoid visual bug, simplify defaults
* led: add a color preview and simplify methods to fix some issues
* simplify presets move all the logic to the panel
* led: change presets from names to previews
* preview label shows color, add vertical mode
* led: colored previews as rectangles instead of circles
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Co-authored-by: alfrix <alfredomonclus@gmail.com>
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