Add Code Editor functionalities to LivePreview component

[tobiu]

@mxmrtns @maxrahder @ExtAnimal

We need the component to display code and the related rendered output for the new learning section.

First we need to decide which engine we want to use, e.g. Ace, CodeSandbox, etc.

[mxmrtns]

We need syntax highlighting and other code editor behaviour as shown in this example https://microsoft.github.io/monaco-editor/

https://microsoft.github.io/monaco-editor/docs.html

[tobiu]

this one is done.