Support swapping through the random backgrounds

[orhun]

Simply add a button to change the background.

[YadlaMani]

@orhun can you assign me this

[orhun]

You got it! @YadlaMani

[YadlaMani]

You need to change background of entire website or certain elements and the background should be really random or from a set of like 35-30 images

[orhun]

So we have some background images in https://github.com/orhun/CoolModFiles/tree/master/public/images and we would like to add a button on the web page to simply randomly change the background to one of these images.

[YadlaMani]

Okay