Update config

[luctst]

Is your feature request related to a problem? Please describe.
No.

Describe the solution you'd like
For better performances add:

• Use partials on .scss files.
• Add react-router-dom package.
• Add routes folder in the root of src/ folder.
• Move the app.js file in the root of view/ folder.
• Create index.js file in the root of src folder as new main entry.
• Update webpack config.

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🌵 🌵 🌵 Lucas ✋ 🌵 🌵 🌵

[luctst]

Done

• Check all commits from 18/02/19.

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🌵 🌵 🌵 Lucas ✋ 🌵 🌵 🌵