Update admin-bar.blade.php: Fix uncaught TypeError for missing confirmationLink element on non-admin views

[thealexparadox]

Summary of Changes

This pull request resolves a runtime TypeError (can't access property "addEventListener", document.getElementById(...) is null) occurring on pages where the admin bar module is conditionally absent.

Root Cause

The inline script block inside admin-bar.blade.php unconditionally executes document.getElementById("confirmationLink").addEventListener(...) and attempts to read its attributes on every page load. When rendered on views lacking the administrative user deletion link, #confirmationLink evaluates to null, breaking client-side JavaScript execution globally for the UI.

Solution

• Introduced a DOM existence check (if (confirmationLink)) around the event listener binding logic.
• Added a corresponding null check inside the showConfirmation() helper function to safely verify element presence before attempting to fetch the href attribute.