Version 0.0.2 - Fixes and Improvements

Changes in this version

• Merged the two functions used for spectrum calculation into a new function: extract_xarrays_by_time_and_region. This new function allows users to choose the desired variable name for spectrum calculation (e.g., ssha, ssha_noiseless, or others). Additionally, it resolves the issue of file selection for the desired time period, which was less precise in the previous version.
• Changed the minimum segment length for spectrum calculation from 200 to 120, enabling spectrum calculation in smaller regions.
• Added fs (sampling frequency) as a parameter to the spectrum calculation function, allowing spectrum computation for other satellite products beyond SWOT.