split sitemaps into the chunks more agressively

[oiwn]

No description provided.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 87.03704% with 7 lines in your changes missing coverage. Please review.
✅ Project coverage is 45.22%. Comparing base (b1d2d20) to head (96f9adb).
⚠️ Report is 22 commits behind head on main.

Files with missing lines	Patch %	Lines
src/main.rs	0.00%	6 Missing ⚠️
src/server/handlers.rs	97.91%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #102      +/-   ##
==========================================
+ Coverage   44.84%   45.22%   +0.37%     
==========================================
  Files          38       38              
  Lines        5717     5749      +32     
==========================================
+ Hits         2564     2600      +36     
+ Misses       3153     3149       -4     

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