Fix pause video on cancel while picking point

If we picked a point and cancel while still in the picking point state
the video would not pause so the list of sections would be shown with
the video still playing.

app/javascript/controllers/player/state.js

@@ -87,6 +87,7 @@ export class PickingPointState extends PlayerState {
 
   reset() {
     this.context.loopManager.clear()
+    this.context.player.pause()
     this.context.state = this.context.readyState
   }
 }