Add ExternalLink icon

[a5e]

Addresses #ticket-number.

Purpose

Added new icon ExternalLink in size 16 and 24.

Approach and changes

• Exported and optimized the svgs from Figma.
• Updated the manifest.
• Created a changeset.

Definition of done

• Development completed
• Reviewers assigned
• Unit and integration tests
• Meets minimum browser support
• Meets accessibility requirements

[sumup-clark]

Hey @a5e,
we are super excited that you are contributing! 🎉There's one more thing you need to do. Please accept our Contributor License Agreement. It helps you and us to collaborate on clear terms and focus on what we love most: code.

Thanks!

[changeset-bot]

🦋 Changeset detected

Latest commit: bf1ebdd

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 2 packages

Name	Type
@sumup/icons	Minor
@sumup/circuit-ui	Major

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[vercel]

The latest updates on your projects. Learn more about Vercel for Git ↗︎

Name	Status	Preview	Comments	Updated (UTC)
oss-circuit-ui	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	May 30, 2023 5:51am

[codecov]

Codecov Report

Merging #2135 (bf1ebdd) into main (710ccfb) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main    #2135   +/-   ##
=======================================
  Coverage   92.09%   92.09%           
=======================================
  Files         171      171           
  Lines        3607     3607           
  Branches     1270     1270           
=======================================
  Hits         3322     3322           
  Misses        264      264           
  Partials       21       21           

[connor-baer]

The icon color should not be hard-coded. From the (docs):

Unless icons are a brand logo (e.g. the Mastercard logo), all SVG fills should always be currentColor. This lets developers style icons using CSS instead of overriding fill colors.

[connor-baer]

Thank you for the contribution! 🙌