laravel mix file css,js two run type command

laravel webpack.js

const mix = require('laravel-mix');

/*
 |--------------------------------------------------------------------------
 | Mix Asset Management
 | https://laravel-mix.com/docs/6.0/what-is-mix
 |--------------------------------------------------------------------------
 | npm install laravel-mix@latest --save-dev
 | npm run dev
 | npm run production
 |--------------------------------------------------------------------------
 |
 | Mix provides a clean, fluent API for defining some Webpack build steps
 | for your Laravel applications. By default, we are compiling the CSS
 | file for the application as well as bundling up all the JS files.
 |
 */

// mix.js('resources/js/app.js', 'public/js')
//     .postCss('resources/css/app.css', 'public/css', [
//         //
//     ]);
// mix.sass('resources/sass/app.sass', 'public/css');

// mix.postCss('public/static/mywebsite/css/app.scss', 'public/static/mywebsite/mini/app.css', [
// ]);

// mix.config.fileLoaderDirs.fonts = 'static/mywebsite/fonts/';
mix.options({
    fileLoaderDirs:  {
        fonts: 'static/mywebsite/fonts',
        images: 'static/mywebsite/images'
    }
});

mix.sass('public/static/mywebsite/css/bootstrap-4.3.1/scss/bootstrap.scss', 'public/static/mywebsite/mini/bootstrap.css', [
]);

mix.sass('public/static/mywebsite/plugins/select2/scss/core.scss', 'public/static/mywebsite/mini/select2.css', [
]);

mix.combine([
    'public/static/mywebsite/mini/bootstrap.css',
    'public/static/mywebsite/mini/select2.css'
], 'public/static/mywebsite/mini/core.css');

mix.sass('public/static/mywebsite/css/common.scss', 'public/static/mywebsite/mini/common.css', [
]);

mix.sass('public/static/mywebsite/css/home.scss', 'public/static/mywebsite/mini/home.css', [
]);
mix.sass('public/static/mywebsite/css/detail.scss', 'public/static/mywebsite/mini/detail.css', [
]);
mix.sass('public/static/mywebsite/css/detail_description.scss', 'public/static/mywebsite/mini/detail_description.css', []);

mix.sass('public/static/mywebsite/css/checkout.scss', 'public/static/mywebsite/mini/checkout.css', [
]);
mix.sass('public/static/mywebsite/css/timetosale.scss', 'public/static/mywebsite/mini/timetosale.css', [
]);

mix.sass('public/static/mywebsite/css/staticpages/brake_drum.scss', 'public/static/mywebsite/mini/brake_drum.css', [
]);
mix.sass('public/static/mywebsite/css/staticpages/brake_pads.scss', 'public/static/mywebsite/mini/brake_pads.css', [
]);
mix.sass('public/static/mywebsite/css/staticpages/brake_sensor.scss', 'public/static/mywebsite/mini/brake_sensor.css', [
]);
mix.sass('public/static/mywebsite/css/staticpages/brake_shoes.scss', 'public/static/mywebsite/mini/brake_shoes.css', [
]);
mix.sass('public/static/mywebsite/css/staticpages/eline.scss', 'public/static/mywebsite/mini/eline.css', [
]);
mix.sass('public/static/mywebsite/css/staticpages/geomet.scss', 'public/static/mywebsite/mini/geomet.css', [
]);
mix.sass('public/static/mywebsite/css/staticpages/hardware_kits.scss', 'public/static/mywebsite/mini/hardware_kits.css', [
]);

mix.sass('public/static/mywebsite/css/staticpages/bbk.scss', 'public/static/mywebsite/mini/bbk.css', [
]);
mix.sass('public/static/mywebsite/css/staticpages/bbk_interactive.scss', 'public/static/mywebsite/mini/bbk_interactive.css', [
]);
mix.sass('public/static/mywebsite/css/thankyou.scss', 'public/static/mywebsite/mini/thankyou.css', [
]);
mix.sass('public/static/mywebsite/css/user.scss', 'public/static/mywebsite/mini/user.css', [
]);


// mix.js('public/static/mywebsite/js/common.js', 'public/static/mywebsite/mini/common.js');

package.json

{
    "private": true,
    "scripts": {
        "dev": "npm run development",
        "development": "mix",
        "watch": "mix watch",
        "watch-poll": "mix watch -- --watch-options-poll=1000",
        "hot": "mix watch --hot",
        "prod": "npm run production",
        "production": "mix --production",
        "admin-production": "mix --mix-config=webpack_admin.mix.js --production"
    },
    "devDependencies": {
        "axios": "^0.21",
        "laravel-mix": "^6.0.49",
        "lodash": "^4.17.19",
        "postcss": "^8.1.14",
        "resolve-url-loader": "^5.0.0",
        "sass": "^1.50.1",
        "sass-loader": "^12.6.0"
    }
}

webpack_admin.mix.js

const mix = require('laravel-mix');

/*
 |--------------------------------------------------------------------------
 | Mix Asset Management
 | https://laravel-mix.com/docs/6.0/what-is-mix
 |--------------------------------------------------------------------------
 | npm install laravel-mix@latest --save-dev
 | npm run dev
 | npm run production
 |--------------------------------------------------------------------------
 |
 | Mix provides a clean, fluent API for defining some Webpack build steps
 | for your Laravel applications. By default, we are compiling the CSS
 | file for the application as well as bundling up all the JS files.
 |
 */

mix.sass('resources/admin/scss/adminr1.scss', 'public/static/admin/css/adminr1.css', [
]);