call setfloating in setmon

since in the previous commit we may not applying floating in clients
this is to make sure we do

dwl.c

@@ -2103,6 +2103,7 @@ setmon(Client *c, Monitor *m, uint32_t newtags)
 		resize(c, c->geom, 0);
 		c->tags = newtags ? newtags : m->tagset[m->seltags]; /* assign tags of target monitor */
 		setfullscreen(c, c->isfullscreen); /* This will call arrange(c->mon) */
+		setfloating(c, c->isfloating);
 	}
 	focusclient(focustop(selmon), 1);
 }