fix: Remove console error when line is deleted by 'Toggle task done' command

[claremacrae]

Types of changes

Changes visible to users:

• Bug fix (prefix: fix - non-breaking change which fixes an issue)
  • Issue/discussion: Fixes Console error when 'Toggle task done' command deletes the task line #3256

Internal changes:

• Tests (prefix: test - additions and improvements to unit tests and the smoke tests)

Description

Motivation and Context

Fix a traceback error discovered earlier today:

• Console error when 'Toggle task done' command deletes the task line #3256

How has this been tested?

• Adding failing tests - then fixing them
• Running existing tests
• Confirming fix by exploratory testing

Checklist

• My code follows the code style of this project and passes yarn run lint.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• My change has adequate Unit Test coverage.

Terms

• My contribution follows this project's contributing guide
• I agree to follow this project's Code of Conduct

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud