FloorPlan: the kitchen LED strip is light.led_ambient

The strip was renamed in Home Assistant, so the live Home dashboard
already uses light.led_ambient and the old id no longer exists.
rooms.py still had the old one, and pushing the regenerated dashboard
would have broken the strip's button.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

Author: AlexandrLisitsa

FloorPlan/tools/rooms.py

@@ -57,7 +57,7 @@
     {"kind": "light", "room": "kitchen", "spot": "kitchen_ceiling", "overlay": "kitchen_ceiling",
      "entity": "light.kitchen_relay", "name": "Ceiling", "icon": "mdi:ceiling-light"},
     {"kind": "light", "room": "kitchen", "spot": "kitchen_led", "overlay": "kitchen_led",
-     "entity": "light.0xa4c1385443844c1e", "name": "LED strip", "icon": "mdi:led-strip-variant"},
+     "entity": "light.led_ambient", "name": "LED strip", "icon": "mdi:led-strip-variant"},
     {"kind": "badge", "room": "kitchen", "spot": "kitchen_climate",
      "entities": ["sensor.0xa4c1383900dd497c_temperature", "sensor.0xa4c1383900dd497c_humidity"]},
     # Hallway

HomeAssistant/dashboards/lovelace.dashboard_home.json

@@ -87,7 +87,7 @@
                   "room": "kitchen"
                 },
                 {
-                  "entity": "light.0xa4c1385443844c1e",
+                  "entity": "light.led_ambient",
                   "overlay": "/local/floorplan/kitchen_led.png?v=9acd8325",
                   "name": "LED strip",
                   "icon": "mdi:led-strip-variant",