feat(ui): polish domains UX and dark-mode loading accents

Group service domain tables with inline redirect controls, live-save
redirects without full refreshes, and only auto-pair www hosts when a
www redirect is active. Align helper tooltips, server-timing HUD, and
loading spinners with dark-theme accents; default theme-color to dark.

resources/views/layouts/app.blade.php

@@ -50,7 +50,7 @@
                     @endif
                 </div>
                 {{-- Collapse toggle + team switcher --}}
-                <div class="flex items-center gap-1.5 min-w-0 flex-1 pl-3 pr-4">
+                <div class="flex items-center gap-0.5 min-w-0 flex-1 pl-3 pr-4">
                     <x-top-breadcrumb />
                     <div id="server-topbar-context" class="min-w-0"></div>
                     <div class="flex-1"></div>