Fixes resampling and spindle counting logic for both absolute and relative sigma power methods.
- Resample data to 100Hz if the sampling frequency is greater than 100Hz.
- Corrects the spindle counting logic to accurately count spindles based on threshold crossings.
- Improves the filtering process by using MNE's filter_data function.
- Updates STFT parameters for better time-frequency resolution.
- Simplifies code and improves readability.
Bumped dependencies versions.
**Full Changelog**: https://github.com/sjg2203/SSp_Detector/compare/v2024.12.10...v2024.12.13