[Feature Request]: In visual diff, have a "blink mode" to swap between representations

### What would you like to happen?

Migration: https://issues.apache.org/jira/browse/HOP-2673
https://issues.apache.org/jira/browse/HOP-3164

In visual diff, have a "blink mode" to swap between representations to compare versions without having to switch tabs.

When performing a diff between two objects, it would be useful to have a parameter to choose if changes in step positions are to be included or not. Most of the time changes in step positions are not relevant.

### Issue Priority

Priority: 3

### Issue Component

Component: Hop Gui

Start with the Hop GUI visual-diff entry point and read migration tickets HOP-2673 and HOP-3164 for context. Define how blink mode swaps the two representations and how users choose whether step-position changes count; the work is done when both options operate during a visual diff without switching tabs.

Written by the indexing model from the issue text.