refactor(v5): rename Home to Dashboard and add coollabs brand styles

Rename HomeController, Home page, and V5HomeProps type to Dashboard
equivalents. Update route name from 'home' to 'dashboard'.

Add coollabs brand color tokens to CSS theme and a 'coolify' button
variant using those colors. Add Sheet UI component for slide-over panels.
Update navbar with active-route detection and Sheet-based mobile drawer.
Switch cluster action buttons to use the new 'coolify' variant.

app/Http/Controllers/V5/DashboardController.php

@@ -16,7 +16,7 @@ use Illuminate\Validation\Rule;
 use Inertia\Inertia;
 use Inertia\Response;
 
-class HomeController extends Controller
+class DashboardController extends Controller
 {
     private const SELECTED_PROJECT_SESSION_KEY = 'v5.selectedProjectUuid';
 
@@ -28,7 +28,7 @@ class HomeController extends Controller
         $projects = $this->projects($currentTeam);
         [$selectedProject, $selectedEnvironment] = $this->selectedProjectAndEnvironment($request, $projects);
 
-        return Inertia::render('Home', [
+        return Inertia::render('Dashboard', [
             'flux' => $fluxHealth->check(),
             'projects' => $projects,
             'selectedProjectUuid' => $selectedProject['uuid'] ?? null,