refactor: remove ServerIconController and update related views for server icon handling

app/Http/Controllers/ServerIconController.php

@@ -1,42 +0,0 @@
-<?php
-
-namespace App\Http\Controllers;
-
-use Illuminate\Http\Request;
-use Illuminate\Support\Facades\Auth;
-use Paymenter\Extensions\Servers\Proxmox\Models\Server;
-
-class ServerIconController extends Controller
-{
-    // Update the icon and color for a server
-    public function update(Request $request, $serverId)
-    {
-        $request->validate([
-            'icon' => 'nullable|string|max:64',
-            'color' => 'nullable|string|max:32',
-        ]);
-
-        $server = Server::where('id', $serverId)
-            ->where('user_id', Auth::id())
-            ->firstOrFail();
-
-        $server->user_set_icon = $request->input('icon');
-        $server->user_set_icon_color = $request->input('color');
-        $server->save();
-
-        return response()->json(['success' => true]);
-    }
-
-    // Get the icon and color for a server
-    public function show($serverId)
-    {
-        $server = Server::where('id', $serverId)
-            ->where('user_id', Auth::id())
-            ->firstOrFail();
-
-        return response()->json([
-            'icon' => $server->user_set_icon,
-            'color' => $server->user_set_icon_color,
-        ]);
-    }
-}