Display delay minutes in parentheses

[michael-fritzsch]

Summary

The API's departure time already includes delays. I think it is clearer if the delay is shown in parentheses to account for this.

Example: Train's planned departure is 12:03 with current delay of 2 minutes. This would currently be shown as 12:05 +2 min. I propose to change this to 12:05 (+2 min).

Type of Change

• Bug fix (non-breaking change that fixes an issue)
• New feature (non-breaking change that adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation update
• Code refactoring
• CI/CD or build changes

Changes Made

• Add parenthesis around delay time

Checklist

• I have tested my changes locally
• I have run npm test and all tests pass
• I have added tests for new functionality (if applicable)
• I have updated the README.md (if applicable)
• My code follows the project's code style
• I have added comments to my code where necessary