Fix mouse event above fzf finder

Fix #2949

src/tui/light.go

@@ -545,7 +545,7 @@ func (r *LightRenderer) mouseSequence(sz *int) Event {
 	t := atoi(elems[0], -1)
 	x := atoi(elems[1], -1) - 1
 	y := atoi(elems[2], -1) - 1 - r.yoffset
-	if t < 0 || x < 0 || y < 0 {
+	if t < 0 || x < 0 {
 		return Event{Invalid, 0, nil}
 	}
 	*sz += end + 1