Feature: Create StartPage

[johannegg]

The main thing that has been done is creating a basic start page called StartPage.tsx. This includes:

• A header with the logo and a question: 'Which solution can I help you with today?'
• A Container with cards that later will link to the chatbot. This cards will be used to choose which solution to ask questions about
  

Additionally, there has been som refactoring done.

• The App.tsx has become the main place for setting up React Router.
• I have created a folder called 'Pages', where I put the StartPage.tsx
• I have added path aliasing (~) for cleaner imports.
• I have moved common.css out of assets and into a 'styles' folder.
• I have removed some unnecessary files and code blocks.

[vegardaaalbretsen]

React-router-dom was not recognized automatically and i had to do npm install react-router-dom.

Is this fixable?

[vegardaaalbretsen]

Works in docker