Make profiler-edit run profile compacting before writing out the file

[mstange]

profiler-edit was just writing out the profile with JSON.stringify, which is different from what the front-end does when you download the profile - the front-end goes through profile sanitization, which also runs compacting.

You can see in the snapshot tests that running compacting removes some unused strings from the stringArray.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 83.82%. Comparing base (fede2a3) to head (9816c0e).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #6015   +/-   ##
=======================================
  Coverage   83.82%   83.82%           
=======================================
  Files         328      328           
  Lines       34254    34255    +1     
  Branches     9479     9574   +95     
=======================================
+ Hits        28712    28713    +1     
  Misses       5114     5114           
  Partials      428      428           

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[canova]

Nice! LGTM.