Fix #25177: Skeleton Sketching - deleted sketches don't disappear immediately

Added notifier ND_SKETCH for handling such actions

source/blender/editors/armature/editarmature_sketch.c

@@ -2456,6 +2456,7 @@ static int sketch_delete(bContext *C, wmOperator *UNUSED(op), wmEvent *UNUSED(ev
 		sk_deleteSelectedStrokes(sketch);
 //			allqueue(REDRAWVIEW3D, 0);
 	}
+	WM_event_add_notifier(C, NC_SCREEN|ND_SKETCH|NA_REMOVED, NULL);
 	return OPERATOR_FINISHED;
 }
 

source/blender/editors/space_view3d/space_view3d.c

@@ -703,6 +703,7 @@ static void view3d_main_area_listener(ARegion *ar, wmNotifier *wmn)
 			switch(wmn->data) {
 				case ND_GPENCIL:
 				case ND_ANIMPLAY:
+				case ND_SKETCH:
 					ED_region_tag_redraw(ar);
 					break;
 				case ND_SCREENBROWSE:

source/blender/windowmanager/WM_types.h

@@ -172,6 +172,7 @@ typedef struct wmNotifier {
 #define ND_GPENCIL			(5<<16)
 #define ND_EDITOR_CHANGED	(6<<16) /*sent to new editors after switching to them*/
 #define ND_SCREENSET		(7<<16)
+#define ND_SKETCH			(8<<16)
 
 	/* NC_SCENE Scene */
 #define ND_SCENEBROWSE		(1<<16)