- Replace boolean hideTextInVerticalBar with maxTextLength object that has
separate horizontal and vertical properties for more flexible text length control
- Add NSpinBox controls in settings UI to configure both horizontal and
vertical max text length independently
- Update CustomButton widget to use new maxTextLength structure and
implement text scrolling based on direction-specific limits
- Set default values to 10 for both horizontal and vertical (was 20/0)
- Update translations and widget registry metadata accordingly
- When vertical maxTextLength is 0, text is completely hidden (preserving
original hideTextInVerticalBar: true behavior)
This allows users to set different text length limits for horizontal and
vertical bar orientations, providing more granular control over text display.
loner