Update the 'Copy' button animation

[janfaracik]

Small little PR to update the 'Copy' button animation. You now get a little more visual feedback that something has been copied successfully, the copy symbol now transforms into a check mark.

Before

Screen.Recording.2025-01-09.at.15.03.54.mov

After

Screen.Recording.2025-01-09.at.14.54.44.mov

In doing so the 'Copied' tooltip has been dropped, happy to hear thoughts on this, I personally found it a little janky in how it replaced the existing tooltip on click.

Testing done

• Animation displays as expected, copying still works

Proposed changelog entries

• Update the 'Copy' button animation

Proposed upgrade guidelines

N/A

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2. The changelog entries and upgrade guidelines are appropriate for the audience affected by the change (users or developers, depending on the change) and are in the imperative mood (see examples). Fill in the Proposed upgrade guidelines section only if there are breaking changes or changes that may require extra steps from users during upgrade.
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8. For new APIs and extension points, there is a link to at least one consumer.

Desired reviewers

@jenkinsci/sig-ux

Before the changes are marked as ready-for-merge:

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4. Proper changelog labels are set so that the changelog can be generated automatically.
5. If the change needs additional upgrade steps from users, the upgrade-guide-needed label is set and there is a Proposed upgrade guidelines section in the pull request title (see example).
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[timja]

Tested locally LGTM

[mawinter69]

lgtm

[A1exKH]

LGTM.

[timja]

/label ready-for-merge

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This PR is now ready for merge, after ~24 hours, we will merge it if there's no negative feedback.

Thanks!