CurveEditor: allow clicking on label

bin/style.css

@@ -784,6 +784,7 @@ input[type=checkbox]:checked:after {
 }
 .fx-animpanel .track label.curve-label {
   user-select: none;
+  pointer-events: none;
   position: absolute;
   text-transform: capitalize;
   margin-left: 15px;

bin/style.less

@@ -861,6 +861,7 @@ input[type=checkbox] {
 		}
 		label.curve-label {
 			user-select: none;
+			pointer-events: none;
 			position: absolute;
 			text-transform: capitalize;
 			margin-left: 15px;