Address review feedback on composer updates

- Default INERTIA_SSR_ENABLED to false to match .env.example, .env.ci and
  .env.production, so existing setups keep the previous behaviour.
- Stop tracking the published Filament assets under /public/fonts/filament and
  add them to .gitignore, as recommended by the Filament docs. They are
  regenerated by filament:assets via the filament:upgrade post-autoload-dump
  hook. /public/css and /public/js are already ignored.
- Drop the now dead theme.css filter from the Vite asset list in app.blade.php,
  since the custom Filament theme was removed along with viteTheme().

resources/views/app.blade.php

@@ -19,7 +19,7 @@
 
         <!-- Scripts -->
         @routes
-        @vite(array_filter(\Nwidart\Modules\Module::getAssets(), fn($asset) => $asset !== 'resources/css/filament/admin/theme.css'))
+        @vite(\Nwidart\Modules\Module::getAssets())
         @inertiaHead
     </head>
     <body class="font-sans antialiased">