Files
Andrew Farkas 4ef5d2c814 Fix relative line numbers in sticky headers (#45164)
Closes #42586 

This includes a rewrite of `calculate_relative_line_numbers()`. Now it's
linear-time with respect to the number of rows displayed, instead of
linear time with respect to the number of rows displayed _plus_ the
distance to the base row.

Release Notes:

- Improved performance when using relative line numbers in large files
- Fixed relative line numbers not appearing in sticky headers
2025-12-19 17:32:38 +00:00
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