refactor(McpSettings): simplify args form item and adjust navbar padding for Windows

- Removed unnecessary validation rules from the args Form.Item in McpSettings for cleaner code.
- Updated McpSettingsNavbar to conditionally adjust padding based on the operating system.

close #4244

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

@@ -370,11 +370,7 @@ const McpSettings: React.FC<Props> = ({ server }) => {
                 </Form.Item>
               )}
 
-              <Form.Item
-                name="args"
-                label={t('settings.mcp.args')}
-                tooltip={t('settings.mcp.argsTooltip')}
-                rules={[{ required: serverType === 'stdio', message: '' }]}>
+              <Form.Item name="args" label={t('settings.mcp.args')} tooltip={t('settings.mcp.argsTooltip')}>
                 <TextArea rows={3} placeholder={`arg1\narg2`} style={{ fontFamily: 'monospace' }} />
               </Form.Item>
 

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

@@ -1,6 +1,7 @@
 import { EditOutlined, ExportOutlined, SearchOutlined } from '@ant-design/icons'
 import { NavbarRight } from '@renderer/components/app/Navbar'
 import { HStack } from '@renderer/components/Layout'
+import { isWindows } from '@renderer/config/constant'
 import { EventEmitter } from '@renderer/services/EventService'
 import { Button } from 'antd'
 import { useTranslation } from 'react-i18next'
@@ -13,7 +14,7 @@ export const McpSettingsNavbar = () => {
   const onClick = () => window.open('https://mcp.so/', '_blank')
 
   return (
-    <NavbarRight>
+    <NavbarRight style={{ paddingRight: isWindows ? 150 : 12 }}>
       <HStack alignItems="center" gap={5}>
         <Button
           size="small"