Implement Copy for LineTableRow type

[d-e-s-o]

Auto-derive Copy for the LineTableRow type. This way, we don't have to manually clone objects of the type.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 95.47%. Comparing base (c529f1f) to head (50f048c).
⚠️ Report is 4 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1547      +/-   ##
==========================================
- Coverage   95.51%   95.47%   -0.04%     
==========================================
  Files          56       56              
  Lines        9534     9534              
==========================================
- Hits         9106     9103       -3     
- Misses        428      431       +3     

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