Add bookmark folders

[quambene]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 91.32420% with 38 lines in your changes are missing coverage. Please review.

Project coverage is 90.08%. Comparing base (dd14452) to head (884519a).

Files	Patch %	Lines
src/bookmark_reader/json_reader.rs	92.02%	11 Missing ⚠️
src/bookmark_reader/plist_reader.rs	92.30%	9 Missing ⚠️
src/bookmarks/source_bookmarks.rs	70.96%	9 Missing ⚠️
src/bookmarks/mod.rs	40.00%	6 Missing ⚠️
src/bookmarks/target_bookmarks.rs	86.66%	2 Missing ⚠️
src/bookmark_reader/text_reader.rs	92.30%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #83      +/-   ##
==========================================
+ Coverage   90.04%   90.08%   +0.04%     
==========================================
  Files          36       39       +3     
  Lines        5703     5852     +149     
==========================================
+ Hits         5135     5272     +137     
- Misses        568      580      +12     

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