Improve complaint card link routing

[contolini]

The ellipses in complaint cards were using a vanilla anchor tag, causing them to ignore the app's router and lose the user's search status when returning to search results.

Addresses DATAP-1224

Changes

• Replace anchor element with Link element.

Testing

• yarn test should pass
• Search for something.
• Click the [...] on a complaint card with longer text.
• Click the < Back to search results link on the dedicated complaint page. It should take you back to your search results instead of the CCDB homepage.

Screenshots

before	after

Checklist

• Changes are limited to a single goal (no scope creep)
• Code can be automatically merged (no conflicts)
• Code follows the standards laid out in the front end playbook
• Passes all existing automated tests
• New functions include new tests
• New functions are documented (with a description, list of inputs, and expected output)
• Placeholder code is flagged
• Visually tested in supported browsers and devices
• Project documentation has been updated (including the "Unreleased" section of the CHANGELOG)