feat: update storage directory path for Windows

[monkeyWie]

Fixed: #1044

This PR includes breaking changes because it has moved the persistent directories. If need to keep the old data, you will need to manually move the gopeed.db, database.hive, database.lock files, and the extensions folder from the application's main directory to the ./storage directory.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 66.17%. Comparing base (7ce0d87) to head (6cfbb1e).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1087      +/-   ##
==========================================
- Coverage   66.40%   66.17%   -0.24%     
==========================================
  Files          41       41              
  Lines        5046     5046              
==========================================
- Hits         3351     3339      -12     
- Misses       1378     1387       +9     
- Partials      317      320       +3     

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