feat(ui): add optional "next/previous" slice buttons to the SliceSelector
Description
The slice selector allows selecting a slice quickly, but is not very precise when there are many slices. Adding optional "next" and "previous" buttons may resolve this issue.
Functional specifications
Adding two buttons, "<" (previous) and ">" (next) should be enough. They should be optional.
Technical specifications
QButtons, "<" and ">" SVG icons and some "if" in libs/ui/qt/SliceSelector.cpp
. Add a configuration ("displayStepButtons" ?) in modules/ui/qt/image/SliceIndexPositionEditor.cpp
to enable / disable the feature.
Test plan
- GUI test