fix: show McpMux logo in OAuth consent modal header

Replace duplicate client logo in the authorization request header
with the McpMux app logo. The client info card below still shows
the client's own icon (VS Code, Cursor, etc).

Signed-off-by: Mohammod Al Amin Ashik <maa.ashik00@gmail.com>

Author: its-mash

apps/desktop/src/components/OAuthConsentModal.tsx

@@ -13,7 +13,7 @@
 import { useState, useEffect } from 'react';
 import { invoke } from '@tauri-apps/api/core';
 import { listen } from '@tauri-apps/api/event';
-import { Shield, Check, X, AlertCircle, Loader2, Globe, Lock } from 'lucide-react';
+import { Check, X, AlertCircle, Loader2, Globe, Lock } from 'lucide-react';
 import {
   Button,
   Card,
@@ -293,17 +293,11 @@ export function OAuthConsentModal() {
       <Card className="w-full max-w-md mx-4 shadow-xl animate-in fade-in zoom-in duration-200">
         <CardHeader>
           <div className="flex items-center gap-3">
-            {logoUrl ? (
-              <img
-                src={logoUrl}
-                alt={details.clientName}
-                className="h-10 w-10 rounded-full"
-              />
-            ) : (
-              <div className="p-2 rounded-full bg-primary-500/10">
-                <Shield className="h-6 w-6 text-primary-500" />
-              </div>
-            )}
+            <img
+              src="/mcpmux.svg"
+              alt="McpMux"
+              className="h-10 w-10 rounded-lg"
+            />
             <div>
               <CardTitle>Authorization Request</CardTitle>
               <CardDescription>