* Changed the binary retrieval for `Shaka-Packager` to use `find_binary` for improved accuracy.
* This ensures the correct binary is located and used in the environment checks.
* Refactored the `find_binary` function to utilize `binaries.find` for improved binary detection.
* Updated dependency path retrieval to ensure accurate results.
Original code by @p0llux12 - Discord
- Introduced `SurfsharkVPN` class for proxy service integration.
- Updated configuration to include `surfsharkvpn` in proxy providers.
- Removed legacy `nordvpn` configuration from YAML.
- Enhanced `dl.py` and `search.py` to utilize `SurfsharkVPN`.
* Updated the `services` directory assignment to ensure it is always treated as a list, improving consistency in configuration handling. Allows to provide multiple different service folders.
* Introduced `SubtitleCodecChoice` to allow selection of subtitle codecs with support for enum names, values, and common aliases.
* Updated `--sub-format` option in `dl.py` to utilize the new `SubtitleCodecChoice`.
