Ability to copy initialization code from examples

[kostasx]

Adding the ability to copy the necessary initialization code to the clipboard from the examples for easy and quick setup.

Example

[tipsy]

Thanks @kostasx, that's pretty neat.

Could you make it a bit less "intrusive" ? Instead of having the big copy icon in the middle, just write a text (Copy config) in the top right corner, and remove the code-popup when the code is copied? Just have a smaller popup which says something like "Config copied to clipboard`? And don't display it on mobile?

[tipsy]

You could also use https://clipboardjs.com to make things simpler.

[kostasx]

Thanks for the feedback @tipsy. I will review your suggestions and make the necessary changes, probably tonight.

[kostasx]

Updated.

[tipsy]

Looks great, thank you!