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.

resources/css/v5/app.css

@@ -29,6 +29,11 @@
     --color-destructive: var(--destructive);
     --color-destructive-foreground: var(--destructive-foreground);
     --color-warning: var(--warning);
+    --color-coollabs-50: #f5f0ff;
+    --color-coollabs: #6b16ed;
+    --color-coollabs-100: #7317ff;
+    --color-coollabs-200: #5a12c7;
+    --color-coollabs-300: #4a0fa3;
     --color-border: var(--border);
     --color-input: var(--input);
     --color-ring: var(--ring);
@@ -76,7 +81,7 @@
     --warning: #fcd452;
     --border: oklch(0.92 0.004 286.32);
     --input: oklch(0.92 0.004 286.32);
-    --ring: oklch(0.705 0.015 286.067);
+    --ring: var(--warning);
     --chart-1: oklch(0.871 0.006 286.286);
     --chart-2: oklch(0.552 0.016 285.938);
     --chart-3: oklch(0.442 0.017 285.786);
@@ -112,7 +117,7 @@
     --warning: #fcd452;
     --border: oklch(1 0 0 / 10%);
     --input: oklch(1 0 0 / 15%);
-    --ring: oklch(0.552 0.016 285.938);
+    --ring: var(--warning);
     --chart-1: oklch(0.871 0.006 286.286);
     --chart-2: oklch(0.552 0.016 285.938);
     --chart-3: oklch(0.442 0.017 285.786);