fix #267: addressed ESlint issues for JourneyCard component

[jefische]

Description

Before:

Linter produced these errors:

• Line 1:1
  • Error: missing header header/header
• Line 15:28
  • Error: Missing JSDoc comment. jsdoc/require-jsdoc
• Line 18:22
  • Error: Missing return type on function. @typescript-eslint/explicit-function-return-type
• Line 58:23
  • Error: Do not use Array index in keys react/no-array-index-key

After:

All linting errors resolved:

• Added header
• Added JSDoc for JourneyCard
• Added explicit JSX.Element return type for JourneyCard
• Added id property to journeySteps array for use with key prop during list rendering

Closes #267

Screenshot

Pre-submission checklist

• Code builds and passes locally
• PR title follows Conventional Commit format (e.g. test #001: created unit test for __ component)
• Request reviews from the Peer Code Reviewers and Senior+ Code Reviewers groups
• Thread has been created in Discord and PR is linked in gis-code-questions

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Project	Deployment	Preview	Comments	Updated (UTC)
elecretanta	Ready	Preview	Comment	Oct 30, 2025 2:04am
elecretanta-storybook	Ready	Preview	Comment	Oct 30, 2025 2:04am
elecretanta-unit-test	Ready	Preview	Comment	Oct 30, 2025 2:04am

[tonyb650]

Looks good.

[bethanyann]

looks good!