AutoMerge is a property of transform operations, so it seems more
convenient to have this option bundled with transform settings.
Another thing is that the 'Live Unwrap' option has no real relation to
Transform.
Therefore, remove the 'AutoMerge' sub-panel and create two sub-panels
for the Options Panel:
- Transform
- UVs
Merge the 'AutoMerge' settings into the 'Transform' sub-panel.
Move 'Live Unwrap' to the 'UVs' sub-panel.
Pull Request: https://projects.blender.org/blender/blender/pulls/108056