feat: add user-defined server icon support with customizable color

extensions/Servers/Proxmox/views/server.blade.php

@@ -5,7 +5,11 @@
             <div class="flex items-center justify-between mb-2">
                 <div class="flex items-center gap-3">
                     <div class="bg-secondary/10 p-2 rounded-lg">
-                        <x-ri-server-line class="size-5 text-secondary" />
+                        @if($server->user_set_icon)
+                            <i class="ri-{{ $server->user_set_icon }} size-5" @if($server->user_set_icon_color) style="color: {{ $server->user_set_icon_color }}" @endif></i>
+                        @else
+                            <x-ri-server-line class="size-5 text-secondary" />
+                        @endif
                     </div>
                     <span class="font-medium">{{ $status->name }}</span>
                 </div>