Render floatingBox.jelly for computer actions on Computer page

[Divya07-22]

Fixes #23461

Testing done

Manually tested using a plugin that provides a computer action with floatingBox.jelly. Verified that after this change, the floating box correctly appears on the Computer (agent/node) page, whereas previously it did not render.

Screenshots (UI changes only)

Before

No floating box displayed for computer actions on the Computer page.

After

Floating box is now visible for computer actions on the Computer page.

Proposed changelog entries

• Render floatingBox.jelly for computer actions on the Computer page to improve UI consistency and allow plugin actions to display floating boxes for nodes/agents.

Proposed changelog category

/label rfe, web-ui

Proposed upgrade guidelines

N/A

Submitter checklist

• The issue, if it exists, is well-described.
• 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.
• There is automated testing or an explanation as to why this change has no tests.
• UI changes do not introduce regressions when enforcing the current default rules of Content Security Policy Plugin. In particular, new or substantially changed JavaScript is not defined inline and does not call eval to ease future introduction of Content Security Policy (CSP) directives (see documentation).

Desired reviewers

@jenkinsci/core-pr-reviewers

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[MarkEWaite]

Closing this pull request because the user experience SIG is moving in another direction, per:

• Add floatingBox.jelly support to Computer index page #25910 (comment)

Closing also because the submitter did not provide screenshots to show the changed behavior.

Closing also because the submitter did not state which plugin was used for the interactive testing, especially since there is no known plugin that provides a floatingbox.jelly. I suspect that the statement from the pull request submission is false when it says that the submitter:

Manually tested using a plugin that provides a computer action with floatingBox.jelly.