Scrollbars don't work properly

The scrollbars used to scroll around a large or zoomed pipeline don't work properly.

For Hop Web they don't show up at all or don't work properly.

For the regular fat client they regularly fail to update correctly after zooming or moving them.  The canvas often doesn't get updated correctly.  It's hard to reproduce the rare cases but we know they exist.

More importantly, the canvas size often is too small if you want to extend a pipeline or workflow to the right or at the bottom.  You have to drag an icon off-screen to extend the size of the graph after which the scrollbars update after the facts, often incorrectly positioning themselves.

The "scrollbar" idea is simply wrong for large canvas areas showing a DAG.

It's better to use a navigation window at the bottom right and use other ways to navigate around.