Updated docs for Select style.

Updated docs for Select style with new option of false.

src/ol/interaction/Select.js

@@ -61,6 +61,7 @@ const SelectEventType = {
  * @property {import("../style/Style.js").StyleLike} [style]
  * Style for the selected features. By default the default edit style is used
  * (see {@link module:ol/style}).
+ * If set to `false` the selected feature's style will not change.
  * @property {import("../events/condition.js").Condition} [removeCondition] A function
  * that takes an {@link module:ol/MapBrowserEvent~MapBrowserEvent} and returns a
  * boolean to indicate whether that event should be handled.