Improves the application's icon handling by introducing multi-resolution
support, replacing a single PNG file with multiple resolution-specific icons.
- ✨ **Added** multiple resolution icons (16x16, 32x32, 48x48, 64x64, 256x256, 512x512).
- 🔄 **Updated** GUI setup to use multi-resolution icons for better scalability.
- 🗑️ **Removed** the old single-resolution `icon.png`.
This update ensures better compatibility and visual quality across
different platforms and screen resolutions.
* Updated type hints for various methods in and classes.
* Changed list types from to for better clarity and consistency.
* Improved function signatures to include return types for better type safety.
* Refactored the filter extraction logic to directly use `header.filter_text(i)` for better clarity.
* Updated the filters list to store tuples of index and text, enhancing the data structure used.
* Ensured that the `proxy_model.filters` is set directly, simplifying the code.
* Updated type hints for several methods in `MainWindow` class to improve code clarity and type safety.
* Changed return types to `None` where applicable.
* Refined parameter types for better type checking and consistency.
* Added detailed docstrings for methods in the `MainWindow` class.
* Improved clarity on parameters and return types for better understanding.
* Aims to facilitate future development and maintenance.
* Refactored `search_result_to_model` to use type hints with `list` instead of `[*SearchTypes]`.
* Added detailed docstring for better understanding of parameters and return types.
* Extracted logic into helper methods for better readability and maintainability.
* Improved handling of item availability and explicit content representation.
- Added a safeguard to skip items in `user_lists` that do not match expected types (`UserPlaylist`, `Playlist`, or `Mix`).
- Ensured `twi_child` is only accessed when properly initialized.
- This prevents crashes during GUI interaction when unexpected data is encountered.
Robert Honz