9388e6f096
- Added a new `PlainSlider` widget for keyboard-editable numeric sliders. - Updated various panels to utilize the new `PlainSlider` for better user interaction. - Removed unused code and dead code warnings across multiple files. - Improved organization of modules by adding a `widgets` module. - Cleaned up imports in several files to streamline the codebase. - Added Qodana configuration file for code analysis and quality checks.