Clean up webpack configuration

packages/core-js/webpack.common.js

@@ -8,6 +8,7 @@ module.exports = {
         filename: 'core.js',
         publicPath: '',
     },
+    target: 'web',
     module: {
         rules: [
             {

packages/core-js/webpack.dev.js

@@ -4,7 +4,6 @@ const common = require('./webpack.common');
 
 const devConfig = {
     mode: 'development',
-    target: 'web',
     plugins: [new HotModuleReplacementPlugin()],
     devtool: 'eval-source-map'
 };

packages/mindplot/webpack.common.js

@@ -22,8 +22,9 @@ module.exports = {
             },
         ],
     },
+    target: 'web',
     resolve: {
-        extensions: ['.js', '.jsx', '.json'],
+        extensions: ['.js', '.json'],
     },
     plugins: [new CleanWebpackPlugin()],
 };

packages/mindplot/webpack.dev.js

@@ -10,7 +10,6 @@ const devConfig = {
         port: 8080,
         open: true,
     },
-    target: 'web',
     plugins: [new HotModuleReplacementPlugin()],
     devtool: 'eval-source-map',
 };

packages/web2d/webpack.common.js

@@ -22,6 +22,7 @@ module.exports = {
             },
         ],
     },
+    target: 'web',
     resolve: {
         extensions: ['.js', '.jsx', '.json'],
     },

packages/web2d/webpack.playground.js

@@ -41,7 +41,6 @@ module.exports = {
         open: true,
     },
     mode: 'development',
-    target: 'web',
     devtool: 'source-map',
     module: {
         rules: [