Reproduction steps:
1. Create new 2D template project or 3D template project with 2D Animation package
2. Import attached package "Naninovel.unitypackage"
3. In Project window, Right-Click -> Create -> Naninovel -> Naninovel Script, select it
4. Observe Inspector window

Expected result: There is no additional space between Adressable toggle and "stop" line
Actual result: There is additional space between Adressable toggle and "stop" line

Reproducible with: 6.0.4 (2021.2.0a20, 2021.2.0b3), 7.0.0-pre.2 (2022.1.0a2)
Not reproducible with: 3.2.9 (2019.4.29f1), 5.0.6 (2020.3.14f1), 6.0.4 (2021.1.14f1, 2021.2.0a19)

Workaround:
Resetting packages or removing the 2D Animation package fixes the issue.