Make logic in resume-translate-service more robust

[Nateowami]

This change is 

[codecov]

Codecov Report

❌ Patch coverage is 75.00000% with 4 lines in your changes missing coverage. Please review.
✅ Project coverage is 81.83%. Comparing base (5e6d0c0) to head (722dbd3).
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
.../app/checking/checking/resume-translate.service.ts	81.81%	0 Missing and 2 partials ⚠️
...ure/ClientApp/src/app/project/project.component.ts	60.00%	0 Missing and 2 partials ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #3699   +/-   ##
=======================================
  Coverage   81.83%   81.83%           
=======================================
  Files         619      619           
  Lines       38622    38628    +6     
  Branches     6317     6316    -1     
=======================================
+ Hits        31605    31611    +6     
- Misses       6043     6055   +12     
+ Partials      974      962   -12     

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