Plugins: Only set the card button status on plugin install pages.

[costdev]

Previously, the setCardButtonStatus() JS function was called when a card had the ID plugin-information-footer. However, the card will only exist on plugin install pages. This caused a failure when updating plugins from the plugin row on plugins.php due to an undefined card.

This adds a guard to ensure that the current page is one of the plugin install pages, preventing the error and allowing plugin updates from the plugins.php rows to work as expected.

Trac ticket: https://core.trac.wordpress.org/ticket/60521

[github-actions]

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[github-actions]

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Props costdev, hellofromtonya.

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[hellofromtonya]

LGTM 👍

In my testing, can reproduce and these changes resolve the bug 🐛 ✅

Left a minor nit comment about spacing since touching that line of code.

[krupal-panchal]

Changes looks good to me.

[costdev]

Committed in r57615.