Update cancel_print.cfg

Add same timed filter routine as in end_print

macros/base/cancel_print.cfg

@@ -10,6 +10,7 @@ gcode:
     {% set light_enabled = printer["gcode_macro _USER_VARIABLES"].light_enabled %}
     {% set status_leds_enabled = printer["gcode_macro _USER_VARIABLES"].status_leds_enabled %}
     {% set bed_mesh_enabled = printer["gcode_macro _USER_VARIABLES"].bed_mesh_enabled %}
+    {% set filter_default_time = printer["gcode_macro _USER_VARIABLES"].filter_default_time_on_end_print|default(600)|int %}
 
     PARK
 
@@ -41,8 +42,14 @@ gcode:
 
     SDCARD_RESET_FILE
 
+    # If a filter is connected, and used during the print, continue filtering the air
+    # for a couple of min before stopping everything
     {% if filter_enabled %}
-        STOP_FILTER
+        {% if printer['fan_generic filter'].speed > 0 %}
+            {% set FILTER_TIME = params.FILTER_TIME|default(filter_default_time)|int %}
+            START_FILTER SPEED=1
+            UPDATE_DELAYED_GCODE ID=_STOP_FILTER_DELAYED DURATION={FILTER_TIME}
+        {% endif %}
     {% endif %}
 
     {% if light_enabled %}