- 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.
- Introduced `theme.rs` to handle visual themes, font discovery, and application of theme colors.
- Implemented system font registration for Linux, macOS, and Windows.
- Added `apply_theme` function to configure egui visuals based on selected theme presets.
feat: Implement interactive tool state management
- Created `tool_state.rs` to manage runtime tool, selection, and transform states.
- Defined `ToolState` struct to encapsulate active tool, color settings, drawing states, and AI panel states.
- Included functionality for managing brush presets, text editing, and selection transformations.
feat: Add utility functions for image and file handling
- Developed `utils.rs` with stateless helper functions for color formatting, drawing icons, and cropping images.
- Implemented save dialog builders and error handling for file operations.
- Added flood fill functionality for composite RGBA pixels.
test: Add unit test for bitmap brush stamp functionality
- Created `bitmap_brush_stamp.rs` to verify the behavior of bitmap brush stamping in the engine.
- Ensured that the painted area matches expected dimensions and characteristics.