fix(ui): Marketplace plugin UI state not dynamically updating

[eduardomozart]

Checklist before requesting a review

Please delete options that are not relevant.

• I have read the CONTRIBUTING document.
• I have performed a self-review of my code.
• I have added tests that prove my fix is effective or that my feature works.
• This change requires a documentation update.

Description

When updating or installing a plugin via the GLPI Marketplace, the UI correctly exposed the action buttons (e.g. "Enable") upon completion. However, the rest of the plugin card and the global marketplace UI did not dynamically update to reflect the new state, requiring a manual page refresh.

This PR addresses multiple frontend UI state inconsistencies that occur after a successful plugin update via AJAX:

1. Version String: The displayed version string for the plugin failed to dynamically update (Closes Marketplace plugin version does not visually update after extraction without a page refresh #25056). The backend now passes the latest version back in a hidden data-new-version attribute alongside the buttons, which the frontend extracts to update the version string dynamically.
2. Updatable Background State: The .bg-warning-subtle highlight class is now correctly stripped from the plugin card's .main container once the plugin has been successfully updated.
3. Updatable Plugins Counter: The global "X plugin(s) to update" warning alert counter is now correctly decremented without refreshing the page. If the count reaches 0, the alert is automatically removed from the DOM.

Changes Made

• src/Glpi/Marketplace/View.php: Modified getButtons() to append the plugin's latest version inside a hidden <span class="new-version" data-new-version="..."> alongside the buttons HTML when the plugin exists locally.
• js/marketplace.js: Updated the AJAX .done() callback handling marketplace actions to extract the data-new-version attribute and update the span.version DOM element. Added logic to remove .bg-warning-subtle and decrement the alert-important global updatable counter dynamically.

Screenshots (if appropriate):

Gravacao.de.Tela.2026-07-31.as.00.40.09.mov