Adds Webpack support and removes the use for Grunt

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

use scss

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

fix build, add babel, fix annotations

fixes (and improvements !) for baggy

add live reload & environments & eslint & theme fixes

app/config/webpack/common.js

@@ -0,0 +1,40 @@
+const path = require('path');
+const webpack = require('webpack');
+const StyleLintPlugin = require('stylelint-webpack-plugin');
+
+const rootDir = path.resolve(__dirname, '../../../');
+
+module.exports = function() {
+  return {
+    entry: {
+      material: path.join(rootDir, './app/Resources/static/themes/material/index.js'),
+      baggy: path.join(rootDir, './app/Resources/static/themes/baggy/index.js'),
+    },
+
+    output: {
+      filename: '[name].js',
+      path: path.resolve(rootDir, 'web/bundles/wallabagcore'),
+      publicPath: '/bundles/wallabagcore/',
+    },
+    plugins: [
+      new webpack.ProvidePlugin({
+        $: 'jquery',
+        jQuery: 'jquery',
+        'window.$': 'jquery',
+        'window.jQuery': 'jquery'
+      }),
+      new StyleLintPlugin({
+        configFile: '.stylelintrc',
+        failOnError: false,
+        quiet: false,
+        context: 'app/Resources/static/themes',
+        files: '**/*.scss',
+      }),
+    ],
+    resolve: {
+      alias: {
+        jquery: path.join(rootDir, 'node_modules/jquery/dist/jquery.js')
+      }
+    },
+  };
+};