I am trying to rReduce my react JS Bundle Size - reactjs

Question

I am trying to reduce the size of my build file ( main.js 432 KiB ), it's a small widget!
I have tried compression-webpack-plugin and DefinePlugin but in vain, the size stays the same, do i need these two extensions, code splitting is not an option because it's a small widget with one component. I would appreciate any feedback. Tks.
Bellow you can find my webpack.config.js
var webpack = require('webpack');
var path = require('path');
var HtmlWebpackPlugin = require('html-webpack-plugin');
var CompressionPlugin = require('compression-webpack-plugin');
module.exports = {
entry: ['#babel/polyfill', './app/index.js'],
output: {
path: path.resolve(__dirname, 'dist'),
filename: 'main.js'
},
module: {
rules: [
{ test: /\.(js)$/, use: 'babel-loader' },
{ test: /\.(css|scss)$/, use: [ 'style-loader', 'css-loader', 'sass-loader', 'cssimportant-loader' ] },
{ test: /\.(jpe?g|png|ttf|eot|svg|woff(2)?)(\?[a-z0-9=&.]+)?$/, use: 'base64-inline-loader?limit=1000&name=[name].[ext]' }
]
},
devtool: 'source-map',
plugins: [
new HtmlWebpackPlugin({
template: './app/index.html',
minify: {
collapseWhitespace: true
}
}),
new webpack.DefinePlugin({
'process.env.NODE_ENV': JSON.stringify('production')
}),
new webpack.optimize.AggressiveMergingPlugin(),
new CompressionPlugin({
filename: "[path].gz[query]",
algorithm: "gzip",
test: /\.js$|\.css$|\.html$/,
threshold: 10240,
minRatio: 0.8
})
]
};
And here is my package.json
{
"name": "my-wdg",
"version": "1.0.0",
"description": "",
"main": "index.js",
"babel": {
"presets": [
"#babel/preset-env",
"#babel/preset-react"
],
"plugins": [
"#babel/plugin-proposal-class-properties"
]
},
"scripts": {
"clean": "rimraf dist",
"start": "webpack-dev-server --open",
"dist": "webpack -p --mode=production",
"watch": "webpack --config webpack.config.js --watch",
"build": "cross-env NODE_ENV=production npm run clean && webpack -p"
},
"keywords": [],
"author": "",
"license": "ISC",
"dependencies": {
"cleanslate": "^0.10.1",
"react": "^16.12.0",
"react-dom": "^16.12.0",
"resolve": "^1.13.1"
},
"devDependencies": {
"#babel/core": "^7.7.5",
"#babel/plugin-proposal-class-properties": "^7.7.4",
"#babel/polyfill": "^7.7.0",
"#babel/preset-env": "^7.7.6",
"#babel/preset-react": "^7.7.4",
"axios": "^0.19.0",
"babel-loader": "^8.0.6",
"base64-inline-loader": "^1.1.1",
"compression-webpack-plugin": "^3.1.0",
"cross-env": "^7.0.2",
"css-loader": "^3.3.0",
"cssimportant-loader": "^0.4.0",
"file-loader": "^4.3.0",
"html-webpack-plugin": "^3.2.0",
"mini-css-extract-plugin": "^0.7.0",
"node-sass": "^4.14.1",
"react-meta-tags": "^0.7.4",
"react-router-dom": "^5.1.2",
"react-structured-data": "0.0.14",
"sass-loader": "^7.3.1",
"style-loader": "^0.23.1",
"webpack": "^4.41.2",
"webpack-cli": "^3.3.10",
"webpack-dev-server": "^3.11.0",
"webpack-provide-global-plugin": "0.0.1"
}
}