fix(tabs): theme changes

Signed-off-by: Sudhanshu Dasgupta <dasguptashivam23@gmail.com>

Author: sudhanshutech

src/theme/components/tab.modifier.ts

@@ -6,7 +6,7 @@ export const MuiTab: Components<Theme>['MuiTab'] = {
       const {
         palette: {
           text: { default: defaultText },
-          background: { default: defaultBackground }
+          background: { neutral: defaultBackground }
         }
       } = theme;
       return {

src/theme/components/tabs.modifier.ts

@@ -3,7 +3,7 @@ import { Components, Theme } from '@mui/material';
 export const MuiTabs: Components<Theme>['MuiTabs'] = {
   styleOverrides: {
     root: ({ theme }) => ({
-      backgroundColor: theme.palette.background.default
+      backgroundColor: theme.palette.background.neutral?.default
     }),
     indicator: ({ theme }) => ({
       backgroundColor: theme.palette.background.brand?.default