refactor(settings): update MCP logo opacity and remove unused notes settings

- Adjust MCP logo opacity in MCPSettings and McpTool components for improved visual consistency.
- Remove notes settings entry from SettingsPage to streamline the settings interface.

src/renderer/src/components/Tab/TabContainer.tsx

@@ -39,7 +39,6 @@ import { useTranslation } from 'react-i18next'
 import { useLocation, useNavigate } from 'react-router-dom'
 import styled from 'styled-components'
 
-import { McpLogo } from '../Icons'
 import MinAppIcon from '../Icons/MinAppIcon'
 import MinAppTabsPool from '../MinApp/MinAppTabsPool'
 import WindowControls from '../WindowControls'
@@ -99,8 +98,6 @@ const getTabIcon = (
       return <NotepadText size={14} />
     case 'knowledge':
       return <FileSearch size={14} />
-    case 'mcp':
-      return <McpLogo width={14} height={14} />
     case 'files':
       return <Folder size={14} />
     case 'settings':

src/renderer/src/pages/settings/MCPSettings/McpTool.tsx

@@ -137,7 +137,7 @@ const MCPToolsSection = ({ tools, server, onToggleTool, onToggleAutoApprove }: M
     {
       title: (
         <Flex align="center" justify="center" gap={4}>
-          <McpLogo width={14} height={14} />
+          <McpLogo width={14} height={14} style={{ opacity: 0.8 }} />
           <Typography.Text strong>{t('settings.mcp.tools.enable')}</Typography.Text>
         </Flex>
       ),

src/renderer/src/pages/settings/MCPSettings/index.tsx

@@ -86,7 +86,7 @@ const MCPSettings: FC = () => {
             title={t('settings.mcp.servers', 'MCP Servers')}
             active={activeView === 'servers'}
             onClick={() => navigate('/settings/mcp/servers')}
-            icon={<McpLogo width={18} height={18} />}
+            icon={<McpLogo width={18} height={18} style={{ opacity: 0.8 }} />}
             titleStyle={{ fontWeight: 500 }}
           />
           <DividerWithText text={t('settings.mcp.discover', 'Discover')} style={{ margin: '10px 0 8px 0' }} />

src/renderer/src/pages/settings/SettingsPage.tsx

@@ -114,12 +114,6 @@ const SettingsPage: FC = () => {
               {t('settings.tool.preprocess.title')}
             </MenuItem>
           </MenuItemLink>
-          <MenuItemLink to="/settings/notes">
-            <MenuItem className={isRoute('/settings/notes')}>
-              <NotebookPen size={18} />
-              {t('notes.settings.title')}
-            </MenuItem>
-          </MenuItemLink>
           <MenuItemLink to="/settings/quickphrase">
             <MenuItem className={isRoute('/settings/quickphrase')}>
               <Zap size={18} />