Remove dead code

[Nateowami]

It's bugged me that sometimes we have public members that are actually dead code. I asked Copilot to find instances of this, but instead it wrote a script to find them, which worked pretty well, but had a lot of false positives (usually for somewhat understandable reasons; not glaring problems with the script). This PR removes the code that's truly dead.

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This change is 

[Copilot]

Pull Request Overview

This PR removes unused public members and imports that were identified as dead code across multiple components in the Scripture Forge application. The changes streamline the codebase by eliminating properties, methods, and imports that are no longer referenced.

• Removes unused getter properties, methods, and class fields
• Eliminates unused imports (environment)
• Cleans up both component logic and UI-related helper methods

Reviewed Changes

Copilot reviewed 13 out of 13 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
collaborators.component.ts	Removed unused getters hasEmailError and totalUsers
suggestions.component.ts	Removed unused showHelp property and toggleHelp() method
lynx-insights-panel.component.ts	Removed unused getRemainingNodeCount() method
draft-sources.component.ts	Removed unused targetLanguageTag getter
draft-generation.component.ts	Removed unused issueEmail getter and unused environment import
biblical-terms.component.ts	Removed unused selectedReferenceForCaption getter
serval-project.component.ts	Removed unused draftSourcesLink getter
permissions-viewer.component.ts	Removed unused hasOperation() method
my-projects.component.ts	Removed unused currentUserRole() method
connect-project.component.ts	Removed unused isBasedOnProjectSet getter and logInWithParatext() method
checking-questions.component.ts	Removed unused activeQuestionChapter getter, nextQuestion(), previousQuestion(), and changeQuestion() methods
checking-answers.component.ts	Removed unused canShowScriptureInput and hasUserRead getters
chapter-audio-dialog.component.ts	Removed unused _editState field, inEditState getter, and assignment to _editState

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 82.48%. Comparing base (0a7df6b) to head (b16ea8a).
⚠️ Report is 1 commits behind head on master.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3529      +/-   ##
==========================================
+ Coverage   82.42%   82.48%   +0.06%     
==========================================
  Files         615      615              
  Lines       36948    36914      -34     
  Branches     6045     6033      -12     
==========================================
- Hits        30453    30450       -3     
+ Misses       5597     5579      -18     
+ Partials      898      885      -13     

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[Nateowami]

(e2e tests passed on this PR. I've removed the label, as I don't think they need to be re-run if this PR is updated and/or rebased)

[RaymondLuong3]

@RaymondLuong3 reviewed 13 of 13 files at r1, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @Nateowami)