update webpack

[debragail]

outdated dependency for webpack 4 using extract-text-webpack-plugin. Using recommended mini-css-extract plugin.

https://webpack.js.org/plugins/extract-text-webpack-plugin/

https://webpack.js.org/plugins/mini-css-extract-plugin/

npm install --save-dev mini-css-extract-plugin

Expected Behavior

npm i should not have multiple version dependencies of webpack.

Current Behavior

Possible Solution

Steps to Reproduce (for bugs)

Context

Your Environment

• Version used:
• Environment name and version (e.g. Node 7.3.12):
• Server type and version:
• Operating System and version:
• Link to your project:

[sureife]

Hi. Would love to help with this!