Layout-strategy lookup by container id, consumed by moveAction to run
the drag-time reflow pass. Sourced by <SceneCanvas> from its layouts
prop. Optional: getLayout returns null for any container when no layout
is configured, so the reflow pass is a no-op then.
Layout-strategy lookup by container id, consumed by
moveActionto run the drag-time reflow pass. Sourced by<SceneCanvas>from itslayoutsprop. Optional:getLayoutreturns null for any container when no layout is configured, so the reflow pass is a no-op then.