SF-3650 Correctly specify the target filters for the trainon config

[pmachapman]

This PR fixes a bug where the train on target filter's scripture ranges were blank, when they should have been the same as the source filter's scripture ranges.

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This change is 

[codecov]

Codecov Report

❌ Patch coverage is 84.61538% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 82.80%. Comparing base (142f019) to head (a4c22bf).
⚠️ Report is 1 commits behind head on master.
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
...XForge.Scripture/Services/MachineProjectService.cs	84.61%	0 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3580      +/-   ##
==========================================
- Coverage   82.80%   82.80%   -0.01%     
==========================================
  Files         608      608              
  Lines       37201    37211      +10     
  Branches     6104     6106       +2     
==========================================
+ Hits        30803    30811       +8     
  Misses       5472     5472              
- Partials      926      928       +2     

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[RaymondLuong3]

Ok, so it looks like previously the trainOn target filters was blank which resulted in all of the books being used from the target project. This change ensures that only the selected target books are used for training. I reproduced the issue on master and can confirm the acceptance tests pass. Nice work!

@RaymondLuong3 reviewed 2 of 2 files at r1, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @pmachapman)