Add l91/webpack-encore package integration

l91/webpack-encore/1.0/assets/website/css/main.scss

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+body {
+    background: #e8cd02;
+    color: #003135;
+}

l91/webpack-encore/1.0/assets/website/js/main.js

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+console.log('Hello World ...');

l91/webpack-encore/1.0/assets/website/package.json

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+{
+    "dependencies": {
+    },
+    "devDependencies": {
+        "@symfony/webpack-encore": "^1.0.0",
+        "core-js": "^3.0.0",
+        "regenerator-runtime": "^0.13.7",
+        "sass": "^1.32.8",
+        "sass-loader": "^11.0.1",
+        "webpack-notifier": "^1.6.0"
+    },
+    "license": "UNLICENSED",
+    "private": true,
+    "scripts": {
+        "dev-server": "encore dev-server",
+        "dev": "encore dev",
+        "watch": "encore dev --watch",
+        "build": "encore production --progress"
+    }
+}

l91/webpack-encore/1.0/assets/website/webpack.config.js

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+const Encore = require('@symfony/webpack-encore');
+
+// Manually configure the runtime environment if not already configured yet by the "encore" command.
+// It's useful when you use tools that rely on webpack.config.js file.
+if (!Encore.isRuntimeEnvironmentConfigured()) {
+    Encore.configureRuntimeEnvironment(process.env.NODE_ENV || 'dev');
+}
+
+Encore
+    // directory where compiled assets will be stored
+    .setOutputPath('../../public/build/website')
+    // public path used by the web server to access the output path
+    .setPublicPath('/build/website')
+    // only needed for CDN's or sub-directory deploy
+    //.setManifestKeyPrefix('build/')
+
+    /*
+     * ENTRY CONFIG
+     *
+     * Each entry will result in one JavaScript file (e.g. app.js)
+     * and one CSS file (e.g. app.css) if your JavaScript imports CSS.
+     */
+    .addEntry('main', ['./js/main.js', './css/main.scss'])
+
+    // When enabled, Webpack "splits" your files into smaller pieces for greater optimization.
+    //.splitEntryChunks()
+
+    // will require an extra script tag for runtime.js
+    // but, you probably want this, unless you're building a single-page app
+    //.enableSingleRuntimeChunk()
+    .disableSingleRuntimeChunk()
+
+    /*
+     * FEATURE CONFIG
+     *
+     * Enable & configure other features below. For a full
+     * list of features, see:
+     * https://symfony.com/doc/current/frontend.html#adding-more-features
+     */
+    .cleanupOutputBeforeBuild()
+    .enableBuildNotifications()
+    .enableSourceMaps(!Encore.isProduction())
+    // enables hashed filenames (e.g. app.abc123.css)
+    .enableVersioning(Encore.isProduction())
+
+    .configureBabel((config) => {
+        config.plugins.push('@babel/plugin-proposal-class-properties');
+    })
+
+    // enables @babel/preset-env polyfills
+    .configureBabelPresetEnv((config) => {
+        config.useBuiltIns = 'usage';
+        config.corejs = 3;
+    })
+
+    // enables Sass/SCSS support
+    .enableSassLoader()
+
+    // uncomment if you use TypeScript
+    //.enableTypeScriptLoader()
+
+    // uncomment if you use React
+    //.enableReactPreset()
+
+    // uncomment to get integrity="..." attributes on your script & link tags
+    // requires WebpackEncoreBundle 1.4 or higher
+    //.enableIntegrityHashes(Encore.isProduction())
+
+    // uncomment if you're having problems with a jQuery plugin
+    //.autoProvidejQuery()
+;
+
+module.exports = Encore.getWebpackConfig();

l91/webpack-encore/1.0/config/packages/assets.yaml

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+framework:
+    assets:
+        packages:
+            website:
+                json_manifest_path: '%kernel.project_dir%/public/build/website/manifest.json'

l91/webpack-encore/1.0/manifest.json

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+{
+    "copy-from-recipe": {
+        "assets/": "assets/",
+        "config/": "%CONFIG_DIR%/"
+    },
+    "gitignore": [
+        "node_modules/",
+        "npm-debug.log",
+        "yarn-error.log"
+    ]
+}