fix: remove borderInlineStart from right content

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/pages/account/settings/style.style.ts

@@ -24,15 +24,14 @@ const useStyles = createStyles(({ token }) => {
       '.ant-menu-horizontal': { fontWeight: 'bold' },
       [`@media screen and (max-width: ${token.screenMD}px)`]: {
         width: '100%',
+        border: 'none',
       },
     },
     right: {
       flex: '1',
       padding: '8px 40px',
-      borderInlineStart: `${token.lineWidth}px solid ${token.colorSplit}`,
       [`@media screen and (max-width: ${token.screenMD}px)`]: {
         padding: '40px',
-        border: 'none',
       },
     },
     title: {