add random weather function

docs/museums/daynight/control.gd

@@ -25,6 +25,9 @@ func _on_wind_toggled(toggled_on: bool) -> void:
 func _on_wind_slider_value_changed(value: float) -> void:
 	UIEvents.wind_change.emit(value)
 
+func _on_random_weather_pressed() -> void:
+	UIEvents.trigger_random_weather.emit(10.0)
+
 func _on_fireflies_toggled(toggled_on: bool) -> void:
 	UIEvents.toggle_fireflies.emit(toggled_on)