message: Fix blank sticker picker
  Let the battle of z-indexes commence
diff: @@ -36,7 +36,7 @@ function getOrCreateContainer() {
  }
  // Greater than that of the ContextualMenu
  -const PE_Z_INDEX = 3000;
  +const PE_Z_INDEX = 5000;
  /*
  * Class of component that renders its children in a separate ReactDOM virtual tree
  