Make logic in resume-translate-service more robust

[Nateowami]

The resume checking service recently had some bugs fixed related to incorrectly assuming the first book in a project's list of books is the first book canonically. The resume translate service had the same bug; it was just never reported as a Jira issue. This PR fixes it.

It also makes a similar fix in project.component.ts

This change is 

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[codecov]

Codecov Report

❌ Patch coverage is 75.00000% with 4 lines in your changes missing coverage. Please review.
✅ Project coverage is 81.33%. Comparing base (74ed20b) to head (e0819b5).
⚠️ Report is 1 commits behind head on master.
✅ 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   81.32%   81.33%           
=======================================
  Files         620      620           
  Lines       39031    39037    +6     
  Branches     6341     6359   +18     
=======================================
+ Hits        31743    31749    +6     
+ Misses       6318     6304   -14     
- Partials      970      984   +14     

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[devin-ai-integration]

✅ Devin Review: No Issues Found

Devin Review analyzed this PR and found no potential bugs to report.

View in Devin Review to see 4 additional findings.

[RaymondLuong3]

@RaymondLuong3 reviewed 4 files and all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on Nateowami).