Feature
Removed redundant Base/subset-header rows from athlete page parallel tables. Sets with an explicit 'Base' parallel no longer render a duplicate row.
Fix Duplicate Parallel Rows
Base Parallels tab and Inserts/Autographs tabs on athlete pages were rendering duplicate rows when a subset's parallel list included an explicit "Base" parallel entry. The code pushed a standalone "Base" row AND iterated the parallels list (which also contained "Base"), producing two identical rows. Now skips the standalone row when the parallels list already includes a Base entry.