refactor: migrate to manifest version 3

webpack/webpack.config.base.js

@@ -106,6 +106,7 @@ const config = {
   },
   optimization: {
     minimize: false,
+    usedExports: true,
     splitChunks: {
       chunks: 'all',
       name: 'common',

webpack/webpack.config.dev.js

@@ -3,7 +3,7 @@ const baseConfig = require('./webpack.config.base');
 
 const config = {
   ...baseConfig,
-  devtool: 'eval-cheap-module-source-map',
+  devtool: 'inline-source-map',
   mode: 'development',
   output: {
     ...baseConfig.output,