fix: clearly show To and From groups in liaison statement email

[rjsparks]

Fixes #5221

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 88.74%. Comparing base (88c144a) to head (b47c4b9).
⚠️ Report is 5 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #9432   +/-   ##
=======================================
  Coverage   88.74%   88.74%           
=======================================
  Files         320      320           
  Lines       41810    41815    +5     
=======================================
+ Hits        37103    37110    +7     
+ Misses       4707     4705    -2     

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