Cosmetic changes to "Global Transform" panel in 3D Viewport sidebar, to make it
more aligned with rest of the Blender UI.
Note that this isn't a comprehensive update, there are still many things to change
according to our discussions in #137280. This PR only includes small,
non-controversial changes so that we can land improvements in 5.0.
Bigger changes will follow in the next version(s).
List of changes:
- Close all subpanels by default.
- Move "Fix to Camera" subpanel to the bottom, so that it's not between related
"Mirror" and "Relative" subpanels.
- Follow Blender's GUI guidelines:
- Use `property_split`.
- Align related properties.
- Remove redundant label from "Relative" subpanel. The title of the subpanel
already communicates the purpose.
- Rename "Mirror Options" subpanel title to just "Mirror". It's obvious that the
panel will contain options.
Pull Request: https://projects.blender.org/blender/blender/pulls/147436
ca7af76bc9