SF-3601 Navigate to the first chapter of a draft when formatting draft

[RaymondLuong3]

This PR updates the behaviour on the draft formatting page so only chapters with drafts can be navigated to. Additionally, in the event that the user navigates to a chapter that when the draft cannot be accessed, the page will communicate that the chapter does not contain a draft rather than the cryptic "book does not exist" message.

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This change is 

[codecov]

Codecov Report

❌ Patch coverage is 92.59259% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 82.20%. Comparing base (6c0ebdf) to head (36d47e5).
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
...n/draft-usfm-format/draft-usfm-format.component.ts	83.33%	0 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3532      +/-   ##
==========================================
- Coverage   82.21%   82.20%   -0.02%     
==========================================
  Files         615      615              
  Lines       37015    37013       -2     
  Branches     6060     6059       -1     
==========================================
- Hits        30433    30425       -8     
- Misses       5678     5682       +4     
- Partials      904      906       +2     

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