docs: Change colortheme in light mode

[michaeldeistler]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 82.55%. Comparing base (ebcd68e) to head (875170e).
⚠️ Report is 4 commits behind head on main.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1638      +/-   ##
==========================================
- Coverage   86.59%   82.55%   -4.05%     
==========================================
  Files         135      135              
  Lines       10931    10950      +19     
==========================================
- Hits         9466     9040     -426     
- Misses       1465     1910     +445     

Flag	Coverage Δ
unittests	82.55% <ø> (-4.05%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.
see 27 files with indirect coverage changes