Speak a shell destination's badge in words, and stop a null offset on PHP 8.5

<x-app-shell> passed no badge label to its rail and bar items, so a badge
like 0/3 reached a screen reader bare; a destination's badgeLabel now does.

The head script indexed the profiles with a null scheme when none are
configured, which PHP 8.5 reports as a deprecated null array offset on every
page with theme.meta on. It reads the default scheme without the lookup.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RHoXZSHc8gGpZjFmA5fPc2

resources/views/components/theme-script.blade.php

@@ -58,7 +58,8 @@
         $schemeProfiles = \NoNameWeb\LivewireMaterial\Support\Scheme::profiles();
 
         $settings['meta'] = [
-            ...$surfaces($schemeProfiles[$settings['scheme']] ?? \NoNameWeb\LivewireMaterial\Support\Scheme::load()),
+            // PHP 8.5 deprecates a null array offset: without profiles the scheme is null.
+            ...$surfaces(($settings['scheme'] !== null ? ($schemeProfiles[$settings['scheme']] ?? null) : null) ?? \NoNameWeb\LivewireMaterial\Support\Scheme::load()),
             'profiles' => (object) collect($schemeProfiles)->map($surfaces)->all(),
         ];
     }