Auto advance line feature

[anbu1504]

Proposed Changes

Adding an optional "auto-advance" behaviour for line-by-line checks in the question UI, and adding unit + integration tests covering the new behaviour.

This is for: #282

Type of Change

Type	Applies?
🚨 Breaking change (fix or feature that would cause existing functionality to change)
✨ New feature (non-breaking change that adds functionality)	X
🐛 Bug fix (non-breaking change that fixes an issue)
🎨 User interface change (change to user interface; provide screenshots)
♻️ Refactoring (internal change to codebase, without changing functionality)
🚦 Test update (change that only adds or modifies tests)
📚 Documentation update (change that only updates documentation)
📦 Dependency update (change that updates a dependency)
🔧 Internal (change that only affects developers or continuous integration)

Checklist

• I have performed a self-review of my changes.

  • Check that all changed files included in this pull request are intentional changes.
  • Check that all changes are relevant to the purpose of this pull request, as described above.

• I have added tests for my changes, if applicable.

  • This is required for all bug fixes and new features.

• I have updated the project documentation, if applicable.

  • This is required for new features.

• If this is my first contribution, I have added myself to the list of contributors.

• I have requested a review from a project maintainer.