Maintain search params on errors

[jacbn]

[the test is dependent on RR7. do not merge this without]

Fixes an issue where error pages were not maintaining search params in the try-again button's link.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 42.49%. Comparing base (a0a1a10) to head (06a89f5).
⚠️ Report is 8 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1925   +/-   ##
=======================================
  Coverage   42.49%   42.49%           
=======================================
  Files         575      575           
  Lines       24550    24550           
  Branches     7241     7241           
=======================================
  Hits        10433    10433           
  Misses      14071    14071           
  Partials       46       46           

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