Integrate new icons

Thanks, as always, to the precious contribution to @rchiileea and @Gtt1229 for the creation of the required icons!

Icon	Name
	pool-filter
	pool-salinty
	water-reservoir
	homemati-ip
	pool-clorine
	pool-depth
	pool-disolved
	pool-electric-lvl
	roku-ultra

What's Changed

• Added roku-ultra icon by @Gtt1229 in #475
• Add new icons by @elax46 in #478

Full Changelog: 2023.9.1...2023.10.0