chore(root): cleanup

babel.config.js

@@ -1,13 +0,0 @@
-module.exports = {
-  presets: [
-    ['@babel/preset-react', { runtime: 'automatic' }],
-    '@babel/preset-typescript',
-    [
-      '@babel/preset-env',
-      {
-        modules: false,
-      },
-    ],
-  ],
-  plugins: ['@babel/plugin-transform-runtime'],
-};

postcss.config.js

@@ -1,8 +0,0 @@
-module.exports = {
-  plugins: [
-    require('postcss-nested'),
-    require('postcss-combine-duplicated-selectors'),
-    require('autoprefixer'),
-    require('postcss-import'),
-  ],
-};