frontPanel/src/pages/main.tsx

import Header from '@ui_kit/Header/Header';
import Sidebar from '@ui_kit/Sidebar';
import Box from '@mui/material/Box';
import {Outlet} from "react-router-dom";
import {useTheme} from "@mui/material";


export default function Main () {
    const theme = useTheme();
    return (
        <>
            <Header isLoggedIn={true}/>
            <Box sx={{
                display: 'flex'
            }}
            >
                <Sidebar />
                <Box
                    sx={{
                        background: theme.palette.background.default,
                        width: '100%',
                        padding: '25px',
                        height: 'calc(100vh - 80px)',
                        overflow: 'auto',
                        boxSizing: "border-box"
                    }}
                >
                    <Outlet />
                </Box>
            </Box>
        </>
    )
}