fix(ui): don't seek when editing time events (#26)

The propagation of click events will now be stopped if something is being dragged.
This prevents the timeline from seeking when editing a time event.

packages/ui/src/hooks/useDrag.ts

@@ -32,6 +32,15 @@ export function useDrag(
     true,
   );
 
+  useDocumentEvent(
+    'click',
+    useCallback(event => {
+      event.stopPropagation();
+    }, []),
+    isDragging,
+    true,
+  );
+
   useDocumentEvent(
     'mousemove',
     useCallback(