Support Sylvania iQBR30 (#3205)

* Support Sylvania iQBR30

* Update homeassistant.js

Co-authored-by: Koen Kanters <koenkanters94@gmail.com>

lib/extension/homeassistant.js

@@ -1341,6 +1341,7 @@ const mapping = {
     '4080248P9': [cfg.light_brightness_colortemp_colorxy],
     '4080148P9': [cfg.light_brightness_colortemp_colorxy],
     '4058075148338': [cfg.light_brightness_colortemp],
+    '484719': [cfg.light_brightness],
 };
 
 Object.keys(mapping).forEach((key) => {