[FE] [TECH DEBT] - add (opens in a new window) text to external link component

[brianseek]

Description

We now have several links that open in a new tab, they all have (opens in a new window) added to the link text. We can move this functionality to our link component to automatically append it to the link text when target="_blank"

Tasks

• [ ] Add append text functionality to external link component
• [ ] Update link text to not have it hard-coded
• [ ] Create or update unit tests
• [ ] Create or update e2e tests
• [ ] Update relevant documentations (readme and use cases)

Acceptance Criteria

• [ ] Passes Accessibility checks using axe
• [ ] Deployed to staging.
• [ ] Tested on staging
• [ ] Designer has signed off on the feature
• [ ] Product team has signed off on the feature
• [ ] Prod validation:
  • [ ] not necessary
  • [ ] scheduled

Code Review Steps

• [ ] Read ticket details and verify that ACs are met
• [ ] Review code in PR
• [ ] Run branch locally
• [ ] Check that new and updated translations use new keys
• [ ] Check for hardcoded strings

[brianseek]

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