Integrate new icons

With the new update of Home Assistant the plans will be available and @rchiileea has moved forward and are already the first icons dedicated to the plans!

Thanks, as always, to the precious contribution to @rchiileea for the creation of the required icons!

Icon	Name
	upstairs-1
	upstairs-2
	upstairs-3
	upstairs-4
	upstairs
	downstairs
	downstairs-basement
	downstairs-ground
	hue-sync-strip
	ikea-floalt-panel
	ikea-gunnarp-panel
	ikea-gunnarp-round
	ikea-vidja
	authentik