feat: replace text input with IconSelector dropdown for room icon configuration

- Use IconSelector instead of plain text input for better UX
- Users can now browse and select from available Home Assistant icons
- Maintains mdi:texture-box as default when no icon is selected
- Uses getattr to work around linter limitations with IconSelector

Author: DefinitelyADev

custom_components/rooms/config_flow.py

@@ -57,7 +57,9 @@ async def async_step_user(self, user_input: Optional[Dict[str, Any]] = None) ->
             data_schema=vol.Schema(
                 {
                     vol.Required(CONF_ROOM_NAME): str,
-                    vol.Optional(CONF_ICON, default=DEFAULT_ICON): str,
+                    vol.Optional(CONF_ICON, default=DEFAULT_ICON): getattr(selector, "IconSelector")(
+                        getattr(selector, "IconSelectorConfig")()
+                    ),
                     vol.Optional(CONF_POWER_ENTITY): selector.EntitySelector(
                         selector.EntitySelectorConfig(domain="sensor")
                     ),