fix: app logo (#4483)

web/app/components/base/chat/chat-with-history/config-panel/index.tsx

@@ -146,14 +146,14 @@ const ConfigPanel = () => {
                 ? null
                 : (
                   <div className={`flex items-center justify-end ${isMobile && 'w-full'}`}>
-                    <a className='flex items-center pr-3 space-x-3' href="https://dify.ai/" target="_blank">
+                    <div className='flex items-center pr-3 space-x-3'>
                       <span className='uppercase'>{t('share.chat.powerBy')}</span>
                       {
                         customConfig?.replace_webapp_logo
                           ? <img src={customConfig?.replace_webapp_logo} alt='logo' className='block w-auto h-5' />
                           : <FootLogo />
                       }
-                    </a>
+                    </div>
                   </div>
                 )
             }